diff --git a/include/stdint.h b/include/stdint.h
index 5cf9d319..bb2ab70d 100644
--- a/include/stdint.h
+++ b/include/stdint.h
@@ -55,9 +55,10 @@ typedef unsigned short uint16_t;
 typedef short int16_t;
 typedef unsigned uint32_t;
 typedef int int32_t;
+#if HAVE_LONG_LONG
 typedef unsigned long long uint64_t;
 typedef long long int64_t;
-
+#endif
 typedef int intmax_t;
 typedef unsigned uintmax_t;