diff --git a/reactos/dll/win32/ws2_32/misc/dllmain.c b/reactos/dll/win32/ws2_32/misc/dllmain.c
index 12620c6c054..4772819eca9 100644
--- a/reactos/dll/win32/ws2_32/misc/dllmain.c
+++ b/reactos/dll/win32/ws2_32/misc/dllmain.c
@@ -642,7 +642,7 @@ WSAAccept(IN     SOCKET s,
     if (Socket == INVALID_SOCKET)
         WSASetLastError(Errno);
 
-    if ( addr )
+    if ( addr && addrlen )
     {
 #if DBG
         LPSOCKADDR_IN sa = (LPSOCKADDR_IN)addr;