diff --git a/main.zig b/main.zig
index b0321677e3322a865482344ca7f12ba873bf462a..e491f3898d06607104cd9c466117205a606cf069 100644
--- a/main.zig
+++ b/main.zig
@@ -120,4 +120,7 @@ comptime {
         .{ "x", "1144509852789" },
         .{ "X", "1144509852" },
     });
+
+    // https://github.com/nektro/zig-time/issues/3
+    harness(1144509852789, &.{.{ "YYYYMM", "200604" }});
 }