diff --git a/reactos/dll/win32/secur32/lsalpc.c b/reactos/dll/win32/secur32/lsalpc.c
index 1b62770021e..31104f65d02 100644
--- a/reactos/dll/win32/secur32/lsalpc.c
+++ b/reactos/dll/win32/secur32/lsalpc.c
@@ -71,7 +71,7 @@ LsapOpenLsaPort(VOID)
     SecurityQos.EffectiveOnly       = TRUE;
 
     RtlZeroMemory(&ConnectInfo,
-                  ConnectInfoLength);
+                  sizeof(ConnectInfo));
 
     ConnectInfo.CreateContext = FALSE;