diff --git a/ext/json/config.w32 b/ext/json/config.w32
index c37d9a9025e..c1a8ccfb306 100644
--- a/ext/json/config.w32
+++ b/ext/json/config.w32
@@ -17,6 +17,6 @@ if (PHP_JSON != "no") {
 
 	ADD_SOURCES(configure_module_dirname, "json_encoder.c json_parser.tab.c json_scanner.c", "json");
 
-	PHP_INSTALL_HEADERS("ext/json/", "php_json.h");
+	PHP_INSTALL_HEADERS("ext/json/", "php_json.h php_json_parser.h php_json_scanner.h");
 }