diff --git a/js/src/shell/js.cpp b/js/src/shell/js.cpp
index 0a7e08744c4..4ff44c1db70 100644
--- a/js/src/shell/js.cpp
+++ b/js/src/shell/js.cpp
@@ -5452,7 +5452,7 @@ DestroyContext(JSContext *cx, bool withGC)
     // data.
     JSShellContextData *data = (JSShellContextData *) JS_GetContextPrivate(cx);
     JS_SetContextPrivate(cx, nullptr);
-    free(data);
+    js_free(data);
     withGC ? JS_DestroyContext(cx) : JS_DestroyContextNoGC(cx);
 }