diff --git a/reactos/include/ddk/winddk.h b/reactos/include/ddk/winddk.h
index a6e1a94e58b..006fa04f19f 100644
--- a/reactos/include/ddk/winddk.h
+++ b/reactos/include/ddk/winddk.h
@@ -4541,7 +4541,7 @@ typedef NTSTATUS
 typedef struct _RTL_QUERY_REGISTRY_TABLE {
   PRTL_QUERY_REGISTRY_ROUTINE  QueryRoutine;
   ULONG  Flags;
-  PWSTR  Name;
+  PCWSTR Name;
   PVOID  EntryContext;
   ULONG  DefaultType;
   PVOID  DefaultData;
diff --git a/reactos/include/ndk/rtltypes.h b/reactos/include/ndk/rtltypes.h
index 9613a2f1a6c..c7d68851002 100644
--- a/reactos/include/ndk/rtltypes.h
+++ b/reactos/include/ndk/rtltypes.h
@@ -689,7 +689,7 @@ typedef struct _RTL_QUERY_REGISTRY_TABLE
 {
     PRTL_QUERY_REGISTRY_ROUTINE QueryRoutine;
     ULONG Flags;
-    PWSTR Name;
+    PCWSTR Name;
     PVOID EntryContext;
     ULONG DefaultType;
     PVOID DefaultData;