diff --git a/tests/unit_tests/list_.ml b/tests/unit_tests/list_.ml
index 6a8d034..8cf215a 100644
--- a/tests/unit_tests/list_.ml
+++ b/tests/unit_tests/list_.ml
@@ -73,5 +73,6 @@ let%expect_test "parsing a list containing a parse error" =
     List.iter print_int xs
   in
   run Command.(singleton parser) [ "1,two,3" ];
-  [%expect {| Failed to parse the argument at position 0: invalid value: "two" (not an int) |}]
+  [%expect
+    {| Failed to parse the argument at position 0: invalid value: "two" (not an int) |}]
 ;;
diff --git a/tests/unit_tests/pair.ml b/tests/unit_tests/pair.ml
index ddb8ab9..4519563 100644
--- a/tests/unit_tests/pair.ml
+++ b/tests/unit_tests/pair.ml
@@ -80,5 +80,6 @@ let%expect_test "parsing a pair containing a parse error" =
     Printf.printf "%d %b" i b
   in
   run Command.(singleton parser) [ "42,foo" ];
-  [%expect {| Failed to parse the argument at position 0: invalid value: "foo" (not an bool) |}]
+  [%expect
+    {| Failed to parse the argument at position 0: invalid value: "foo" (not an bool) |}]
 ;;