diff --git a/src/panfrost/genxml/v12.xml b/src/panfrost/genxml/v12.xml
index edd623ad29e..a9c48ce00cb 100644
--- a/src/panfrost/genxml/v12.xml
+++ b/src/panfrost/genxml/v12.xml
@@ -817,7 +817,7 @@
   </struct>
 
   <struct name="CS PROT_REGION" size="2">
-    <field name="Size" size="16" start="0" type="uint"/>
+    <field name="Size" size="16" start="0" type="uint" modifier="shr(3)"/>
     <field name="Opcode" size="8" start="56" type="CS Opcode" default="PROT_REGION"/>
   </struct>
 
diff --git a/src/panfrost/genxml/v13.xml b/src/panfrost/genxml/v13.xml
index 383ab88c125..5f81a32ff05 100644
--- a/src/panfrost/genxml/v13.xml
+++ b/src/panfrost/genxml/v13.xml
@@ -897,7 +897,7 @@
   </struct>
 
   <struct name="CS PROT_REGION" size="2">
-    <field name="Size" size="16" start="0" type="uint"/>
+    <field name="Size" size="16" start="0" type="uint" modifier="shr(3)"/>
     <field name="Opcode" size="8" start="56" type="CS Opcode" default="PROT_REGION"/>
   </struct>
 
diff --git a/src/panfrost/genxml/v14.xml b/src/panfrost/genxml/v14.xml
index df26afba057..23b8cdd76ad 100644
--- a/src/panfrost/genxml/v14.xml
+++ b/src/panfrost/genxml/v14.xml
@@ -881,7 +881,7 @@
   </struct>
 
   <struct name="CS PROT_REGION" size="2">
-    <field name="Size" size="16" start="0" type="uint"/>
+    <field name="Size" size="16" start="0" type="uint" modifier="shr(3)"/>
     <field name="Opcode" size="8" start="56" type="CS Opcode" default="PROT_REGION"/>
   </struct>