diff --git a/CHANGES b/CHANGES
index c68796a..2cbf629 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,7 @@
+# Unreleased
+
+      * Fix swapping of `>>=` and `<<=` in constants.
+
 ## 0.25.0
 
       * Re-release of yanked 0.24.6 as a major release
diff --git a/src/bindgen/ir/constant.rs b/src/bindgen/ir/constant.rs
index 42182ab..d3b9bd4 100644
--- a/src/bindgen/ir/constant.rs
+++ b/src/bindgen/ir/constant.rs
@@ -321,8 +321,8 @@ impl Literal {
                     syn::BinOp::BitXorEq(..) => "^=",
                     syn::BinOp::BitAndEq(..) => "&=",
                     syn::BinOp::BitOrEq(..) => "|=",
-                    syn::BinOp::ShlEq(..) => ">>=",
-                    syn::BinOp::ShrEq(..) => "<<=",
+                    syn::BinOp::ShlEq(..) => "<<=",
+                    syn::BinOp::ShrEq(..) => ">>=",
                 };
                 Ok(Literal::BinOp {
                     left: Box::new(l),