diff --git a/dll/win32/lsasrv/authpackage.c b/dll/win32/lsasrv/authpackage.c
index 3cc43f74879..d25c8d4b0de 100644
--- a/dll/win32/lsasrv/authpackage.c
+++ b/dll/win32/lsasrv/authpackage.c
@@ -1709,7 +1709,7 @@ done:
     /* Free the authentication authority */
     if (AuthenticatingAuthority != NULL)
     {
-        if (AuthenticatingAuthority != NULL)
+        if (AuthenticatingAuthority->Buffer != NULL)
             LsapFreeHeap(AuthenticatingAuthority->Buffer);
 
         LsapFreeHeap(AuthenticatingAuthority);