diff --git a/exercises/collatz-conjecture/tests/Tests.elm b/exercises/collatz-conjecture/tests/Tests.elm
index e1d1e0a..9534dca 100644
--- a/exercises/collatz-conjecture/tests/Tests.elm
+++ b/exercises/collatz-conjecture/tests/Tests.elm
@@ -15,25 +15,24 @@ tests =
         -- Once you get the first test passing, remove the
         -- `skip <|` (just leave the comma) on the next
         -- lines to continue!
-
         , skip <|
             test "divide if even" <|
-            \() ->
-                Expect.equal (Ok 4) (collatz 16)
+                \() ->
+                    Expect.equal (Ok 4) (collatz 16)
         , skip <|
             test "even and odd step" <|
-            \() ->
-                Expect.equal (Ok 9) (collatz 12)
+                \() ->
+                    Expect.equal (Ok 9) (collatz 12)
         , skip <|
             test "Large number of even and odd step" <|
-            \() ->
-                Expect.equal (Ok 152) (collatz 1000000)
+                \() ->
+                    Expect.equal (Ok 152) (collatz 1000000)
         , skip <|
             test "zero is an error" <|
-            \() ->
-                Expect.equal (Err "Only positive numbers are allowed") (collatz 0)
+                \() ->
+                    Expect.equal (Err "Only positive numbers are allowed") (collatz 0)
         , skip <|
             test "negative values is an error" <|
-            \() ->
-                Expect.equal (Err "Only positive numbers are allowed") (collatz -15)
+                \() ->
+                    Expect.equal (Err "Only positive numbers are allowed") (collatz -15)
         ]