1 files changed, 2 insertions, 1 deletions
diff --git a/src/codegen.c b/src/codegen.c
index d7d4f19b2..e240995e5 100644
--- a/src/codegen.c
+++ b/src/codegen.c
@@ -2505,7 +2505,8 @@ codedump(mrb_state *mrb, int n)
 {
 #ifdef ENABLE_STDIO
   mrb_irep *irep = mrb->irep[n];
-  int i, ai;
+  uint32_t i;
+  int ai;
   mrb_code c;
 
   if (!irep) return;