diff --git a/files/helpers/regex.py b/files/helpers/regex.py
index e32ccd778b..2acca2020d 100644
--- a/files/helpers/regex.py
+++ b/files/helpers/regex.py
@@ -46,7 +46,7 @@ sub_regex = re.compile('(^|\s|<p>)\/?(h\/(\w|-){3,25})(?![^<]*<\/(code|pre|a)>)'
 
 strikethrough_regex = re.compile('(^|\s|>)~{1,2}([^~]+)~{1,2}(?![^<]*<\/(code|pre|a)>)', flags=re.A)
 
-mute_regex = re.compile("\/mute @([a-z0-9_\-]{3,30}) ([0-9]+)", flags=re.A|re.I)
+mute_regex = re.compile("\/mute @?([a-z0-9_\-]{3,30}) ([0-9]+)", flags=re.A|re.I)
 
 emoji_regex = re.compile(f"<p>\s*(:[!#@]{{0,3}}[{valid_username_chars}]+:\s*)+<\/p>", flags=re.A)
 emoji_regex2 = re.compile(f'(?<!"):([!#@{valid_username_chars}]{{1,36}}?):(?![^<]*<\/(code|pre|a)>)', flags=re.A)