diff --git a/src/OpenThreads/qt/QtThreadPrivateData.h b/src/OpenThreads/qt/QtThreadPrivateData.h
index 58188ed1a..918b73096 100644
--- a/src/OpenThreads/qt/QtThreadPrivateData.h
+++ b/src/OpenThreads/qt/QtThreadPrivateData.h
@@ -69,6 +69,8 @@ public:
         case OpenThreads::Thread::THREAD_PRIORITY_MIN:
             prio = IdlePriority;
             break;
+        default:
+            break;
         }
         setPriority( prio );
     }