diff --git a/test/Core/Eval/Positive.hs b/test/Core/Eval/Positive.hs
index 8d6f1aad21..f689b65ea1 100644
--- a/test/Core/Eval/Positive.hs
+++ b/test/Core/Eval/Positive.hs
@@ -229,5 +229,10 @@ tests =
       "LetRec"
       "."
       "test040.jvc"
-      "out/test040.out"
+      "out/test040.out",
+    PosTest
+      "Match with complex patterns"
+      "."
+      "test041.jvc"
+      "out/test041.out"
   ]
diff --git a/tests/Core/positive/out/test041.out b/tests/Core/positive/out/test041.out
new file mode 100644
index 0000000000..2f5bb2d1ca
--- /dev/null
+++ b/tests/Core/positive/out/test041.out
@@ -0,0 +1,7 @@
+cons 9 (cons 7 (cons 5 (cons 3 (cons 1 nil))))
+-12096
+-1448007509520
+5510602057585725
+-85667472308246220
+527851146861989286336
+-441596546382859135501706333021475
diff --git a/tests/Core/positive/test041.jvc b/tests/Core/positive/test041.jvc
new file mode 100644
index 0000000000..a572db1d24
--- /dev/null
+++ b/tests/Core/positive/test041.jvc
@@ -0,0 +1,49 @@
+-- match
+
+constr cons 2;
+constr nil 0;
+
+def lgen := \n if n = 0 then nil else cons n (lgen (n - 1));
+
+def sum2 := \x {
+  match x with {
+    cons x y@(cons z _) -> cons (x + z) (sum2 y);
+    _ -> x
+  }
+};
+
+constr leaf 0;
+constr node 2;
+
+def gen := \n if n <= 0 then leaf else node (gen (n - 2)) (gen (n - 1));
+
+def g;
+
+def f := \t match t with {
+  leaf -> 1;
+  node l r ->
+    match g l, g r with {
+      leaf, leaf -> 0 - 6;
+      node l r, leaf -> (f l + f r) * 2;
+      node l1 r1, node l2 r2 -> (f l1 + f r1) * (f l2 + f r2);
+      _, node l r -> (f l + f r) * (0 - 3)
+    }
+};
+
+def g := \t {
+  match t with {
+    leaf -> t;
+    node (node _ _) r -> r;
+    node l r -> node r l;
+  }
+};
+
+def writeLn := \x write x >> write "\n";
+
+writeLn (sum2 (lgen 5)) >>
+writeLn (f (gen 10)) >>
+writeLn (f (gen 15)) >>
+writeLn (f (gen 16)) >>
+writeLn (f (gen 17)) >>
+writeLn (f (gen 18)) >>
+writeLn (f (gen 20))