diff --git a/redbot/cogs/mutes/converters.py b/redbot/cogs/mutes/converters.py
index fae51088a..dbdafd2ad 100644
--- a/redbot/cogs/mutes/converters.py
+++ b/redbot/cogs/mutes/converters.py
@@ -51,5 +51,5 @@ class MuteTime(Converter):
                     time_data[k] = int(v)
         if time_data:
             result["duration"] = timedelta(**time_data)
-        result["reason"] = argument
+        result["reason"] = argument.strip()
         return result