diff --git a/php/ext/google/protobuf/message.c b/php/ext/google/protobuf/message.c
index cabc39879e..79a2739ace 100644
--- a/php/ext/google/protobuf/message.c
+++ b/php/ext/google/protobuf/message.c
@@ -30,7 +30,6 @@
 
 #include <php.h>
 #include <stdlib.h>
-#include <ext/json/php_json.h>
 
 #include "protobuf.h"