1 files changed, 1 insertions, 1 deletions
diff --git a/internal.h b/internal.h
index b3d3463895..10c58d6533 100644
--- a/internal.h
+++ b/internal.h
@@ -934,7 +934,7 @@ typedef struct rb_imemo_alloc_struct {
     VALUE flags;
     VALUE reserved;
     VALUE *ptr; /* malloc'ed buffer */
-    VALUE next; /* next imemo */
+    struct rb_imemo_alloc_struct *next; /* next imemo */
     size_t cnt; /* buffer size in VALUE */
 } rb_imemo_alloc_t;