diff --git a/gen_input/templates/CORENAME_instr.yaml.gtl b/gen_input/templates/CORENAME_instr.yaml.gtl
index 59fa845..122be5e 100644
--- a/gen_input/templates/CORENAME_instr.yaml.gtl
+++ b/gen_input/templates/CORENAME_instr.yaml.gtl
@@ -10,7 +10,7 @@
     instrGroups
 }%><%getInstructionGroups().each{name, instrList -> %>
 ${name}: <% instrList.findAll{!it.instruction.name.startsWith("__")}.each { %>
-  - ${it.instruction.name}
+  - ${it.instruction.name}:
     encoding: ${it.encoding}
     mask: ${it.mask}<%}}%>