1 files changed, 4 insertions, 1 deletions
diff --git a/src/corelib/global/qglobal.cpp b/src/corelib/global/qglobal.cpp
index bc6560ddae..54df8b1f61 100644
--- a/src/corelib/global/qglobal.cpp
+++ b/src/corelib/global/qglobal.cpp
@@ -4027,7 +4027,10 @@ bool QInternal::activateCallbacks(Callback cb, void **parameters)
 {
     Q_ASSERT_X(cb >= 0, "QInternal::activateCallback()", "Callback id must be a valid id");
 
-    QInternal_CallBackTable *cbt = global_callback_table();
+    if (!global_callback_table.exists())
+        return false;
+
+    QInternal_CallBackTable *cbt = &(*global_callback_table);
     if (cbt && cb < cbt->callbacks.size()) {
         QList<qInternalCallback> callbacks = cbt->callbacks[cb];
         bool ret = false;