diff --git a/deps/miniupnpc/minissdpc.c b/deps/miniupnpc/minissdpc.c
index 2332780d10..2a526d04e8 100644
--- a/deps/miniupnpc/minissdpc.c
+++ b/deps/miniupnpc/minissdpc.c
@@ -606,6 +606,7 @@ ssdpDiscoverDevices(const char * const deviceTypes[],
 	{
 		if(error)
 			*error = MINISSDPC_SOCKET_ERROR;
+		closesocket(sudp);
 		return NULL;
 	}