diff --git a/reactos/include/ddk/ntddk.h b/reactos/include/ddk/ntddk.h
index 870566d73ca..961b0ca8066 100644
--- a/reactos/include/ddk/ntddk.h
+++ b/reactos/include/ddk/ntddk.h
@@ -3350,9 +3350,10 @@ static __inline PVOID
 ExAllocateFromZone(
   IN PZONE_HEADER Zone)
 {
+  PVOID Result = (PVOID)Zone->FreeList.Next;
   if (Zone->FreeList.Next)
     Zone->FreeList.Next = Zone->FreeList.Next->Next;
-  return (PVOID) Zone->FreeList.Next;
+  return Result;
 }
 
 static __inline PVOID
diff --git a/reactos/include/xdk/exfuncs.h b/reactos/include/xdk/exfuncs.h
index df3338f8175..a60908fbe76 100644
--- a/reactos/include/xdk/exfuncs.h
+++ b/reactos/include/xdk/exfuncs.h
@@ -276,9 +276,10 @@ static __inline PVOID
 ExAllocateFromZone(
   IN PZONE_HEADER Zone)
 {
+  PVOID Result = (PVOID)Zone->FreeList.Next;
   if (Zone->FreeList.Next)
     Zone->FreeList.Next = Zone->FreeList.Next->Next;
-  return (PVOID) Zone->FreeList.Next;
+  return Result;
 }
 
 static __inline PVOID