diff --git a/Makefile b/Makefile
index 91bd665725..fc98b27c59 100644
--- a/Makefile
+++ b/Makefile
@@ -504,7 +504,7 @@ ifdef NO_D_INO_IN_DIRENT
 	BASIC_CFLAGS += -DNO_D_INO_IN_DIRENT
 endif
 ifdef NO_C99_FORMAT
-	ALL_CFLAGS += -DNO_C99_FORMAT
+	BASIC_CFLAGS += -DNO_C99_FORMAT
 endif
 ifdef NO_SYMLINK_HEAD
 	BASIC_CFLAGS += -DNO_SYMLINK_HEAD