diff --git a/hash/pet_rom.xml b/hash/pet_rom.xml
index 06853d09e94..179ef2dce8c 100644
--- a/hash/pet_rom.xml
+++ b/hash/pet_rom.xml
@@ -68,7 +68,7 @@
 		</part>
 	</software>
 
-	<software name="mcterm120">
+	<software name="mcterm120" cloneof="mcterm">
 		<description>McTerm 1.20</description>
 		<year>1981</year>
 		<publisher>Madison Computer</publisher>
@@ -80,7 +80,7 @@
 		</part>
 	</software>
 
-	<software name="mcterm121">
+	<software name="mcterm">
 		<description>McTerm 1.21</description>
 		<year>1981</year>
 		<publisher>Madison Computer</publisher>