diff --git a/tests/expectations/enum.both.c b/tests/expectations/enum.both.c
index a42de0d..e4de60f 100644
--- a/tests/expectations/enum.both.c
+++ b/tests/expectations/enum.both.c
@@ -129,27 +129,27 @@ typedef struct H {
   };
 } H;
 
-enum I_Tag {
-  I_Foo,
-  I_Bar,
-  I_Baz,
+enum ExI_Tag {
+  ExI_Foo,
+  ExI_Bar,
+  ExI_Baz,
 };
-typedef uint8_t I_Tag;
+typedef uint8_t ExI_Tag;
 
-typedef struct I_Bar_Body {
+typedef struct ExI_Bar_Body {
   uint8_t x;
   int16_t y;
-} I_Bar_Body;
+} ExI_Bar_Body;
 
-typedef struct I {
-  I_Tag tag;
+typedef struct ExI {
+  ExI_Tag tag;
   union {
     struct {
       int16_t foo;
     };
-    I_Bar_Body bar;
+    ExI_Bar_Body bar;
   };
-} I;
+} ExI;
 
 enum P_Tag {
   P0,
@@ -182,7 +182,7 @@ void root(struct Opaque *opaque,
           F f,
           union G g,
           struct H h,
-          struct I i,
+          struct ExI i,
           struct J j,
           struct K k,
           enum L l,
diff --git a/tests/expectations/enum.both.compat.c b/tests/expectations/enum.both.compat.c
index 5378b67..d34fc19 100644
--- a/tests/expectations/enum.both.compat.c
+++ b/tests/expectations/enum.both.compat.c
@@ -183,33 +183,33 @@ typedef struct H {
   };
 } H;
 
-enum I_Tag
+enum ExI_Tag
 #ifdef __cplusplus
   : uint8_t
 #endif // __cplusplus
  {
-  I_Foo,
-  I_Bar,
-  I_Baz,
+  ExI_Foo,
+  ExI_Bar,
+  ExI_Baz,
 };
 #ifndef __cplusplus
-typedef uint8_t I_Tag;
+typedef uint8_t ExI_Tag;
 #endif // __cplusplus
 
-typedef struct I_Bar_Body {
+typedef struct ExI_Bar_Body {
   uint8_t x;
   int16_t y;
-} I_Bar_Body;
+} ExI_Bar_Body;
 
-typedef struct I {
-  I_Tag tag;
+typedef struct ExI {
+  ExI_Tag tag;
   union {
     struct {
       int16_t foo;
     };
-    I_Bar_Body bar;
+    ExI_Bar_Body bar;
   };
-} I;
+} ExI;
 
 enum P_Tag
 #ifdef __cplusplus
@@ -252,7 +252,7 @@ void root(struct Opaque *opaque,
           F f,
           union G g,
           struct H h,
-          struct I i,
+          struct ExI i,
           struct J j,
           struct K k,
           enum L l,
diff --git a/tests/expectations/enum.c b/tests/expectations/enum.c
index bc94647..f747c88 100644
--- a/tests/expectations/enum.c
+++ b/tests/expectations/enum.c
@@ -129,27 +129,27 @@ typedef struct {
   };
 } H;
 
-enum I_Tag {
-  I_Foo,
-  I_Bar,
-  I_Baz,
+enum ExI_Tag {
+  ExI_Foo,
+  ExI_Bar,
+  ExI_Baz,
 };
-typedef uint8_t I_Tag;
+typedef uint8_t ExI_Tag;
 
 typedef struct {
   uint8_t x;
   int16_t y;
-} I_Bar_Body;
+} ExI_Bar_Body;
 
 typedef struct {
-  I_Tag tag;
+  ExI_Tag tag;
   union {
     struct {
       int16_t foo;
     };
-    I_Bar_Body bar;
+    ExI_Bar_Body bar;
   };
-} I;
+} ExI;
 
 enum P_Tag {
   P0,
@@ -182,7 +182,7 @@ void root(Opaque *opaque,
           F f,
           G g,
           H h,
-          I i,
+          ExI i,
           J j,
           K k,
           L l,
diff --git a/tests/expectations/enum.compat.c b/tests/expectations/enum.compat.c
index 5829c6b..2ccfa7a 100644
--- a/tests/expectations/enum.compat.c
+++ b/tests/expectations/enum.compat.c
@@ -183,33 +183,33 @@ typedef struct {
   };
 } H;
 
-enum I_Tag
+enum ExI_Tag
 #ifdef __cplusplus
   : uint8_t
 #endif // __cplusplus
  {
-  I_Foo,
-  I_Bar,
-  I_Baz,
+  ExI_Foo,
+  ExI_Bar,
+  ExI_Baz,
 };
 #ifndef __cplusplus
-typedef uint8_t I_Tag;
+typedef uint8_t ExI_Tag;
 #endif // __cplusplus
 
 typedef struct {
   uint8_t x;
   int16_t y;
-} I_Bar_Body;
+} ExI_Bar_Body;
 
 typedef struct {
-  I_Tag tag;
+  ExI_Tag tag;
   union {
     struct {
       int16_t foo;
     };
-    I_Bar_Body bar;
+    ExI_Bar_Body bar;
   };
-} I;
+} ExI;
 
 enum P_Tag
 #ifdef __cplusplus
@@ -252,7 +252,7 @@ void root(Opaque *opaque,
           F f,
           G g,
           H h,
-          I i,
+          ExI i,
           J j,
           K k,
           L l,
diff --git a/tests/expectations/enum.cpp b/tests/expectations/enum.cpp
index b3f15b1..a693939 100644
--- a/tests/expectations/enum.cpp
+++ b/tests/expectations/enum.cpp
@@ -127,26 +127,26 @@ struct H {
   };
 };
 
-struct I {
+struct ExI {
   enum class Tag : uint8_t {
-    I_Foo,
-    I_Bar,
-    I_Baz,
+    ExI_Foo,
+    ExI_Bar,
+    ExI_Baz,
   };
 
-  struct I_Foo_Body {
+  struct ExI_Foo_Body {
     int16_t _0;
   };
 
-  struct I_Bar_Body {
+  struct ExI_Bar_Body {
     uint8_t x;
     int16_t y;
   };
 
   Tag tag;
   union {
-    I_Foo_Body foo;
-    I_Bar_Body bar;
+    ExI_Foo_Body foo;
+    ExI_Bar_Body bar;
   };
 };
 
@@ -184,7 +184,7 @@ void root(Opaque *opaque,
           F f,
           G g,
           H h,
-          I i,
+          ExI i,
           J j,
           K k,
           L l,
diff --git a/tests/expectations/enum.pyx b/tests/expectations/enum.pyx
index e410d81..14b648e 100644
--- a/tests/expectations/enum.pyx
+++ b/tests/expectations/enum.pyx
@@ -114,19 +114,19 @@ cdef extern from *:
     H_Bar_Body bar;
 
   cdef enum:
-    I_Foo,
-    I_Bar,
-    I_Baz,
-  ctypedef uint8_t I_Tag;
+    ExI_Foo,
+    ExI_Bar,
+    ExI_Baz,
+  ctypedef uint8_t ExI_Tag;
 
-  ctypedef struct I_Bar_Body:
+  ctypedef struct ExI_Bar_Body:
     uint8_t x;
     int16_t y;
 
-  ctypedef struct I:
-    I_Tag tag;
+  ctypedef struct ExI:
+    ExI_Tag tag;
     int16_t foo;
-    I_Bar_Body bar;
+    ExI_Bar_Body bar;
 
   cdef enum:
     P0,
@@ -152,7 +152,7 @@ cdef extern from *:
             F f,
             G g,
             H h,
-            I i,
+            ExI i,
             J j,
             K k,
             L l,
diff --git a/tests/expectations/enum.tag.c b/tests/expectations/enum.tag.c
index 019d4b9..ca734ba 100644
--- a/tests/expectations/enum.tag.c
+++ b/tests/expectations/enum.tag.c
@@ -129,25 +129,25 @@ struct H {
   };
 };
 
-enum I_Tag {
-  I_Foo,
-  I_Bar,
-  I_Baz,
+enum ExI_Tag {
+  ExI_Foo,
+  ExI_Bar,
+  ExI_Baz,
 };
-typedef uint8_t I_Tag;
+typedef uint8_t ExI_Tag;
 
-struct I_Bar_Body {
+struct ExI_Bar_Body {
   uint8_t x;
   int16_t y;
 };
 
-struct I {
-  I_Tag tag;
+struct ExI {
+  ExI_Tag tag;
   union {
     struct {
       int16_t foo;
     };
-    struct I_Bar_Body bar;
+    struct ExI_Bar_Body bar;
   };
 };
 
@@ -182,7 +182,7 @@ void root(struct Opaque *opaque,
           F f,
           union G g,
           struct H h,
-          struct I i,
+          struct ExI i,
           struct J j,
           struct K k,
           enum L l,
diff --git a/tests/expectations/enum.tag.compat.c b/tests/expectations/enum.tag.compat.c
index 890ba71..71b543c 100644
--- a/tests/expectations/enum.tag.compat.c
+++ b/tests/expectations/enum.tag.compat.c
@@ -183,31 +183,31 @@ struct H {
   };
 };
 
-enum I_Tag
+enum ExI_Tag
 #ifdef __cplusplus
   : uint8_t
 #endif // __cplusplus
  {
-  I_Foo,
-  I_Bar,
-  I_Baz,
+  ExI_Foo,
+  ExI_Bar,
+  ExI_Baz,
 };
 #ifndef __cplusplus
-typedef uint8_t I_Tag;
+typedef uint8_t ExI_Tag;
 #endif // __cplusplus
 
-struct I_Bar_Body {
+struct ExI_Bar_Body {
   uint8_t x;
   int16_t y;
 };
 
-struct I {
-  I_Tag tag;
+struct ExI {
+  ExI_Tag tag;
   union {
     struct {
       int16_t foo;
     };
-    struct I_Bar_Body bar;
+    struct ExI_Bar_Body bar;
   };
 };
 
@@ -252,7 +252,7 @@ void root(struct Opaque *opaque,
           F f,
           union G g,
           struct H h,
-          struct I i,
+          struct ExI i,
           struct J j,
           struct K k,
           enum L l,
diff --git a/tests/expectations/enum.tag.pyx b/tests/expectations/enum.tag.pyx
index bc956a7..e74be33 100644
--- a/tests/expectations/enum.tag.pyx
+++ b/tests/expectations/enum.tag.pyx
@@ -114,19 +114,19 @@ cdef extern from *:
     H_Bar_Body bar;
 
   cdef enum:
-    I_Foo,
-    I_Bar,
-    I_Baz,
-  ctypedef uint8_t I_Tag;
+    ExI_Foo,
+    ExI_Bar,
+    ExI_Baz,
+  ctypedef uint8_t ExI_Tag;
 
-  cdef struct I_Bar_Body:
+  cdef struct ExI_Bar_Body:
     uint8_t x;
     int16_t y;
 
-  cdef struct I:
-    I_Tag tag;
+  cdef struct ExI:
+    ExI_Tag tag;
     int16_t foo;
-    I_Bar_Body bar;
+    ExI_Bar_Body bar;
 
   cdef enum:
     P0,
@@ -152,7 +152,7 @@ cdef extern from *:
             F f,
             G g,
             H h,
-            I i,
+            ExI i,
             J j,
             K k,
             L l,
diff --git a/tests/rust/enum.toml b/tests/rust/enum.toml
index 807507b..dd2dd79 100644
--- a/tests/rust/enum.toml
+++ b/tests/rust/enum.toml
@@ -14,3 +14,6 @@ static_assert(sizeof(CBINDGEN_STRUCT(P)) == 4, "unexpected size for P");
 ' '''
 #endif
 """
+
+[export.rename]
+"I" = "ExI"