diff --git a/quickcheck/aefate_code_eqc.erl b/quickcheck/aefate_code_eqc.erl
index 3ac03da..45fc6b8 100644
--- a/quickcheck/aefate_code_eqc.erl
+++ b/quickcheck/aefate_code_eqc.erl
@@ -44,7 +44,7 @@ prop_opcodes() ->
 
 
 valid_opcodes() ->
-    lists:seq(0, 16#6f) ++ lists:seq(16#fa, 16#ff).
+    lists:seq(0, 16#72) ++ lists:seq(16#fa, 16#ff).
 
 
 fate_code() ->