diff --git a/gdb/riscv-tdep.c b/gdb/riscv-tdep.c
index ae18eb64452..3a2891c2c92 100644
--- a/gdb/riscv-tdep.c
+++ b/gdb/riscv-tdep.c
@@ -1145,7 +1145,7 @@ riscv_print_one_register_info (struct gdbarch *gdbarch,
   enum tab_stops { value_column_1 = 15 };
 
   gdb_puts (name, file);
-  print_spaces (value_column_1 - strlen (name), file);
+  print_spaces (std::max<int> (1, value_column_1 - strlen (name)), file);
 
   try
     {