1 files changed, 1 insertions, 1 deletions
diff --git a/alc/backends/wasapi.cpp b/alc/backends/wasapi.cpp
index 3d85e3e1..063fca98 100644
--- a/alc/backends/wasapi.cpp
+++ b/alc/backends/wasapi.cpp
@@ -463,7 +463,7 @@ struct WasapiProxy {
         const char *mParam;
         std::promise<HRESULT> mPromise;
 
-        operator bool() const noexcept { return mType != MsgType::QuitThread; }
+        explicit operator bool() const noexcept { return mType != MsgType::QuitThread; }
     };
     static std::deque<Msg> mMsgQueue;
     static std::mutex mMsgQueueLock;