diff --git a/MdeModulePkg/Core/Pei/Memory/MemoryServices.c b/MdeModulePkg/Core/Pei/Memory/MemoryServices.c
index 36bdc73ebd..2f9b9dea31 100644
--- a/MdeModulePkg/Core/Pei/Memory/MemoryServices.c
+++ b/MdeModulePkg/Core/Pei/Memory/MemoryServices.c
@@ -96,7 +96,7 @@ PeiInstallPeiMemory (
   // 
   if (PrivateData->PeiMemoryInstalled) {
     DEBUG ((EFI_D_ERROR, "ERROR: PeiInstallPeiMemory is called more than once!\n"));
-    ASSERT (PrivateData->PeiMemoryInstalled);
+    ASSERT (FALSE);
     return EFI_SUCCESS;
   }