diff --git a/jarvis/cogs/dev.py b/jarvis/cogs/dev.py
index f746d23..f08bf22 100644
--- a/jarvis/cogs/dev.py
+++ b/jarvis/cogs/dev.py
@@ -168,6 +168,9 @@ class DevCog(Scale):
         name="uuid2ulid",
         description="Convert a UUID to a ULID",
     )
+    @slash_option(
+        name="uuid", description="UUID to convert", opt_type=OptionTypes.STRING, required=True
+    )
     @cooldown(bucket=Buckets.USER, rate=1, interval=2)
     async def _uuid2ulid(self, ctx: InteractionContext, uuid: str) -> None:
         if UUID_VERIFY.match(uuid):
@@ -180,6 +183,9 @@ class DevCog(Scale):
         name="ulid2uuid",
         description="Convert a ULID to a UUID",
     )
+    @slash_option(
+        name="ulid", description="ULID to convert", opt_type=OptionTypes.STRING, required=True
+    )
     @cooldown(bucket=Buckets.USER, rate=1, interval=2)
     async def _ulid2uuid(self, ctx: InteractionContext, ulid: str) -> None:
         if ULID_VERIFY.match(ulid):