1 files changed, 1 insertions, 1 deletions
diff --git a/regint.h b/regint.h
index ca9f2b12c8..ed8de1d017 100644
--- a/regint.h
+++ b/regint.h
@@ -786,7 +786,7 @@ typedef struct {
 
 typedef struct {
   short int opcode;
-  char*     name;
+  const char* name;
   short int arg_type;
 } OnigOpInfoType;