diff --git a/dll/win32/kernel32_vista/sync.c b/dll/win32/kernel32_vista/sync.c
index 1f13206445e..57fc81a3331 100644
--- a/dll/win32/kernel32_vista/sync.c
+++ b/dll/win32/kernel32_vista/sync.c
@@ -108,7 +108,7 @@ SleepConditionVariableCS(PCONDITION_VARIABLE ConditionVariable, PCRITICAL_SECTIO
     LARGE_INTEGER Time;
 
     Status = RtlSleepConditionVariableCS(ConditionVariable, (PRTL_CRITICAL_SECTION)CriticalSection, GetNtTimeout(&Time, Timeout));
-    if (!NT_SUCCESS(Status))
+    if (!NT_SUCCESS(Status) || Status == STATUS_TIMEOUT)
     {
         SetLastError(RtlNtStatusToDosError(Status));
         return FALSE;