diff --git a/src/panfrost/lib/midgard.xml b/src/panfrost/lib/midgard.xml
index 1117674bb02..ecf82fc1297 100644
--- a/src/panfrost/lib/midgard.xml
+++ b/src/panfrost/lib/midgard.xml
@@ -714,7 +714,7 @@
     <field name="Compare Function" size="3" start="1:13" type="Func" default="Never"/>
     <field name="Maximum LOD" size="13" start="1:16" type="uint" default="0"/>
     <field name="LOD bias" size="16" start="2:0" type="int" default="0"/>
-    <field name="Maximum anisotropy" size="5" start="2:16" type="uint"/>
+    <field name="Maximum anisotropy" size="5" start="2:16" type="uint" default="1" modifier="minus(1)"/>
     <field name="LOD algorithm" size="2" start="2:24" type="LOD Algorithm" default="Isotropic"/>
     <field name="Border Color R" size="32" start="4:0" type="float" default="0.0"/>
     <field name="Border Color G" size="32" start="5:0" type="float" default="0.0"/>