diff --git a/sapi/cli/php_http_parser.c b/sapi/cli/php_http_parser.c
index e58fba3410f..13b9ea12bcd 100644
--- a/sapi/cli/php_http_parser.c
+++ b/sapi/cli/php_http_parser.c
@@ -55,7 +55,9 @@ do {                                                                 \
   }                                                                  \
 } while (0)
 
-
+#ifdef PHP_WIN32
+# undef CALLBACK
+#endif
 #define CALLBACK(FOR)                                                \
 do {                                                                 \
   CALLBACK_NOCLEAR(FOR);                                             \