diff --git a/redbot/core/utils/common_filters.py b/redbot/core/utils/common_filters.py
index 64397c115..ac02ec1cc 100644
--- a/redbot/core/utils/common_filters.py
+++ b/redbot/core/utils/common_filters.py
@@ -16,7 +16,9 @@ __all__ = [
 # regexes
 URL_RE = re.compile(r"(https?|s?ftp)://(\S+)", re.I)
 
-INVITE_URL_RE = re.compile(r"(discord\.(?:gg|io|me|li)|discord(?:app)?\.com\/invite)\/(\S+)", re.I)
+INVITE_URL_RE = re.compile(
+    r"(?<!promos\.)(discord\.(?:gg|io|me|li)|discord(?:app)?\.com\/invite)[\/\\](\S+)", re.I
+)
 
 MASS_MENTION_RE = re.compile(r"(@)(?=everyone|here)")  # This only matches the @ for sanitizing