diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 239083b..d9e52fa 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -126,7 +126,7 @@
  * GRO uses frags we allocate at least 16 regardless of page size.
  */
 #if (65536/PAGE_SIZE + 2) < 16
-#define MAX_SKB_FRAGS 16
+#define MAX_SKB_FRAGS 16UL
 #else
 #define MAX_SKB_FRAGS (65536/PAGE_SIZE + 2)
 #endif