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-rw-r--r--src/winmain/qtmain_win.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/winmain/qtmain_win.cpp b/src/winmain/qtmain_win.cpp
index 845166f595..fc3828d4ac 100644
--- a/src/winmain/qtmain_win.cpp
+++ b/src/winmain/qtmain_win.cpp
@@ -109,7 +109,7 @@ int APIENTRY WinMain(HINSTANCE instance, HINSTANCE prevInstance, LPSTR /*cmdPara
// If there exists an other instance of this application
// it will be the owner of a mutex with the unique ID.
- HANDLE mutex = CreateMutex(NULL, true, (LPCWSTR)uid.utf16());
+ HANDLE mutex = CreateMutex(NULL, TRUE, (LPCWSTR)uid.utf16());
if (mutex && ERROR_ALREADY_EXISTS == GetLastError()) {
CloseHandle(mutex);