diff --git a/lib/mako/__init__.py b/lib/mako/__init__.py
index 3d7dcb6d..d7339219 100644
--- a/lib/mako/__init__.py
+++ b/lib/mako/__init__.py
@@ -5,4 +5,4 @@
 # the MIT License: http://www.opensource.org/licenses/mit-license.php
 
 
-__version__ = "1.2.3"
+__version__ = "1.2.4"
diff --git a/lib/mako/codegen.py b/lib/mako/codegen.py
index a9dbcb67..d1d2c20a 100644
--- a/lib/mako/codegen.py
+++ b/lib/mako/codegen.py
@@ -1251,8 +1251,13 @@ class _Identifiers:
 
 
 _FOR_LOOP = re.compile(
-    r"^for\s+((?:\(?)\s*[A-Za-z_][A-Za-z_0-9]*"
-    r"(?:\s*,\s*(?:[A-Za-z_][A-Za-z0-9_]*),??)*\s*(?:\)?))\s+in\s+(.*):"
+    r"^for\s+((?:\(?)\s*"
+    r"(?:\(?)\s*[A-Za-z_][A-Za-z_0-9]*"
+    r"(?:\s*,\s*(?:[A-Za-z_][A-Za-z_0-9]*),??)*\s*(?:\)?)"
+    r"(?:\s*,\s*(?:"
+    r"(?:\(?)\s*[A-Za-z_][A-Za-z_0-9]*"
+    r"(?:\s*,\s*(?:[A-Za-z_][A-Za-z_0-9]*),??)*\s*(?:\)?)"
+    r"),??)*\s*(?:\)?))\s+in\s+(.*):"
 )
 
 
diff --git a/requirements.txt b/requirements.txt
index 827ed814..98316136 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,7 +22,7 @@ importlib-metadata==5.0.0
 importlib-resources==5.10.0
 git+https://github.com/Tautulli/ipwhois.git@master#egg=ipwhois
 IPy==1.01
-Mako==1.2.3
+Mako==1.2.4
 MarkupSafe==2.1.1
 musicbrainzngs==0.7.1
 packaging==21.3