diff --git a/test/Nockma/Compile/Tree/Positive.hs b/test/Nockma/Compile/Tree/Positive.hs
index 74e3ea60ee..dc72690406 100644
--- a/test/Nockma/Compile/Tree/Positive.hs
+++ b/test/Nockma/Compile/Tree/Positive.hs
@@ -49,7 +49,7 @@ testDescr Tree.PosTest {..} =
 
 -- | Tests which require Nockma-specific expected output files
 testsConstr :: [Int]
-testsConstr = [9, 28, 35]
+testsConstr = [9, 28, 35, 40]
 
 testsNegativeInteger :: [Int]
 testsNegativeInteger = [16]
diff --git a/tests/Tree/positive/out/test040.nockma.out b/tests/Tree/positive/out/test040.nockma.out
new file mode 100644
index 0000000000..37b4d37e4c
--- /dev/null
+++ b/tests/Tree/positive/out/test040.nockma.out
@@ -0,0 +1,2 @@
+2
+[2 258]