diff --git a/reactos/dll/win32/lsasrv/authpackage.c b/reactos/dll/win32/lsasrv/authpackage.c
index 0858601046d..7a3bf7ffc50 100644
--- a/reactos/dll/win32/lsasrv/authpackage.c
+++ b/reactos/dll/win32/lsasrv/authpackage.c
@@ -488,7 +488,7 @@ LsapInitAuthPackages(VOID)
     DispatchTable.AddCredential = &LsapAddCredential;
     DispatchTable.GetCredentials = &LsapGetCredentials;
     DispatchTable.DeleteCredential = &LsapDeleteCredential;
-    DispatchTable.AllocateLsaHeap = &LsapAllocateHeap;
+    DispatchTable.AllocateLsaHeap = &LsapAllocateHeapZero;
     DispatchTable.FreeLsaHeap = &LsapFreeHeap;
     DispatchTable.AllocateClientBuffer = &LsapAllocateClientBuffer;
     DispatchTable.FreeClientBuffer = &LsapFreeClientBuffer;