diff --git a/src/xdp/extensionset.c b/src/xdp/extensionset.c
index bbcddde3..2776663d 100644
--- a/src/xdp/extensionset.c
+++ b/src/xdp/extensionset.c
@@ -341,6 +341,7 @@ XdpExtensionSetCreate(
         Entry->Info = Reg->Info;
         Entry->Size = Reg->Size;
         Entry->Alignment = Reg->Alignment;
+        Entry->InternalExtension = Reg->InternalExtension;
     }
 
     *ExtensionSet = Set;
diff --git a/src/xdp/extensionset.h b/src/xdp/extensionset.h
index 83aafd6a..0fb060a4 100644
--- a/src/xdp/extensionset.h
+++ b/src/xdp/extensionset.h
@@ -11,7 +11,7 @@ typedef struct _XDP_EXTENSION_REGISTRATION {
     XDP_EXTENSION_INFO Info;
     UINT8 Size;
     UINT8 Alignment;
-    BOOLEAN InternalEntry;
+    BOOLEAN InternalExtension;
 } XDP_EXTENSION_REGISTRATION;
 
 NTSTATUS
diff --git a/src/xdp/xsk.c b/src/xdp/xsk.c
index 9c93d9f2..cd404ac1 100644
--- a/src/xdp/xsk.c
+++ b/src/xdp/xsk.c
@@ -232,7 +232,7 @@ static const XDP_EXTENSION_REGISTRATION XskTxFrameExtensions[] = {
         .Info.ExtensionType     = XDP_EXTENSION_TYPE_FRAME,
         .Size                   = sizeof(XDP_FRAME_LAYOUT),
         .Alignment              = __alignof(XDP_FRAME_LAYOUT),
-        .InternalEntry          = TRUE,
+        .InternalExtension      = TRUE,
     },
     {
         .Info.ExtensionName     = XDP_FRAME_EXTENSION_CHECKSUM_NAME,
@@ -240,7 +240,7 @@ static const XDP_EXTENSION_REGISTRATION XskTxFrameExtensions[] = {
         .Info.ExtensionType     = XDP_EXTENSION_TYPE_FRAME,
         .Size                   = sizeof(XDP_FRAME_CHECKSUM),
         .Alignment              = __alignof(XDP_FRAME_CHECKSUM),
-        .InternalEntry          = TRUE,
+        .InternalExtension      = TRUE,
     },
 };