diff --git a/src/freedreno/registers/adreno/a6xx.xml b/src/freedreno/registers/adreno/a6xx.xml
index f9454c93817..918ef6d54ec 100644
--- a/src/freedreno/registers/adreno/a6xx.xml
+++ b/src/freedreno/registers/adreno/a6xx.xml
@@ -1698,7 +1698,8 @@ to upconvert to 32b float internally?
 		<bitfield name="FC_ENABLE" pos="3" type="boolean"/>
 		<!-- set when depth-test + depth-write enabled -->
 		<bitfield name="Z_TEST_ENABLE" pos="4" type="boolean"/>
-		<bitfield name="UNK5" low="5" high="9"/>
+		<bitfield name="Z_BOUNDS_ENABLE" pos="5" type="boolean"/>
+		<bitfield name="UNK6" low="6" high="9"/>
 	</reg32>
 	<reg32 offset="0x8101" name="GRAS_UNKNOWN_8101" low="0" high="2"/>
 	<reg32 offset="0x8102" name="GRAS_2D_BLIT_INFO">