diff --git a/src/common.h b/src/common.h
index 5c9646c51a..943599c96c 100644
--- a/src/common.h
+++ b/src/common.h
@@ -11,7 +11,11 @@
 
 #ifdef __i386__
 #  define LD "d"
+#ifdef __APPLE__
 #  define ULD "lu"
+#else
+#  define ULD "u"
+#endif
 #  define LLD "lld"
 #elif defined __x86_64__
 #  define LD "ld"