diff --git a/src/corelib/kernel/qeventdispatcher_wasm.cpp b/src/corelib/kernel/qeventdispatcher_wasm.cpp
index fd618580f5d..930ff068712 100644
--- a/src/corelib/kernel/qeventdispatcher_wasm.cpp
+++ b/src/corelib/kernel/qeventdispatcher_wasm.cpp
@@ -271,7 +271,6 @@ bool QEventDispatcherWasm::isValidEventDispatcherPointer(QEventDispatcherWasm *e
     if (eventDispatcher == g_mainThreadEventDispatcher)
         return true;
 #if QT_CONFIG(thread)
-    Q_ASSERT(!g_staticDataMutex.try_lock()); // caller must lock mutex
     if (g_secondaryThreadEventDispatchers.contains(eventDispatcher))
         return true;
 #endif