1 files changed, 1 insertions, 1 deletions
diff --git a/src/codegen.c b/src/codegen.c
index 5c3614814..35b22ddf4 100644
--- a/src/codegen.c
+++ b/src/codegen.c
@@ -2538,7 +2538,7 @@ codedump(mrb_state *mrb, int n)
 void
 codedump_all(mrb_state *mrb, int start)
 {
-  int i;
+  size_t i;
 
   for (i=start; i<mrb->irep_len; i++) {
     codedump(mrb, i);