diff --git a/winpr/libwinpr/synch/event.c b/winpr/libwinpr/synch/event.c
index ca00349b7..96164ff54 100644
--- a/winpr/libwinpr/synch/event.c
+++ b/winpr/libwinpr/synch/event.c
@@ -416,7 +416,7 @@ int SetEventFileDescriptor(HANDLE hEvent, int FileDescriptor, ULONG mode)
 
 	event = (WINPR_EVENT*)Object;
 
-	if (!event->bAttached && event->pipe_fd[0] >= 0)
+	if (!event->bAttached && event->pipe_fd[0] >= 0 && event->pipe_fd[0] != FileDescriptor)
 		close(event->pipe_fd[0]);
 
 	event->bAttached = TRUE;