diff --git a/src/mod/languages/mod_spidermonkey/mod_spidermonkey.c b/src/mod/languages/mod_spidermonkey/mod_spidermonkey.c
index 586a4c2a6e..c8e63c332f 100644
--- a/src/mod/languages/mod_spidermonkey/mod_spidermonkey.c
+++ b/src/mod/languages/mod_spidermonkey/mod_spidermonkey.c
@@ -225,7 +225,7 @@ static JSBool event_add_body(JSContext *cx, JSObject *obj, uintN argc, jsval *ar
 
 	if (argc > 0) {
 		char *body = JS_GetStringBytes(JS_ValueToString(cx, argv[0]));
-		switch_event_add_body(eo->event, body);
+		switch_event_add_body(eo->event, "%s", body);
 		*rval = BOOLEAN_TO_JSVAL( JS_TRUE );
 		return JS_TRUE;
 	}