diff --git a/MdeModulePkg/Core/Dxe/Mem/HeapGuard.c b/MdeModulePkg/Core/Dxe/Mem/HeapGuard.c
index 521e0d7b2a..9f89df8d8f 100644
--- a/MdeModulePkg/Core/Dxe/Mem/HeapGuard.c
+++ b/MdeModulePkg/Core/Dxe/Mem/HeapGuard.c
@@ -1559,7 +1559,7 @@ PromoteGuardedFreePages (
     }
   }
 
-  if (AvailablePages) {
+  if (AvailablePages != 0) {
     DEBUG ((DEBUG_INFO, "Promoted pages: %lX (%lx)\r\n", Start, (UINT64)AvailablePages));
     ClearGuardedMemoryBits (Start, AvailablePages);