diff --git a/mypy/config_parser.py b/mypy/config_parser.py
index c68efe9e44ef..94427a347779 100644
--- a/mypy/config_parser.py
+++ b/mypy/config_parser.py
@@ -126,7 +126,7 @@ def split_and_match_files(paths: str) -> list[str]:
     Returns a list of file paths
     """
 
-    return split_and_match_files_list(paths.split(","))
+    return split_and_match_files_list(split_commas(paths))
 
 
 def check_follow_imports(choice: str) -> str:
diff --git a/test-data/unit/cmdline.test b/test-data/unit/cmdline.test
index 2c53266866f4..f298f6dbe2df 100644
--- a/test-data/unit/cmdline.test
+++ b/test-data/unit/cmdline.test
@@ -1300,6 +1300,22 @@ foo.py:1: error: "int" not callable
 [out]
 foo/m.py:1: error: "int" not callable
 
+[case testCmdlineCfgFilesTrailingComma]
+# cmd: mypy
+[file mypy.ini]
+\[mypy]
+files =
+  a.py,
+  b.py,
+[file a.py]
+x: str = 'x'  # ok
+[file b.py]
+y: int = 'y'  # E: Incompatible types in assignment (expression has type "str", variable has type "int")
+[file c.py]
+# This should not trigger any errors, because it is not included:
+z: int = 'z'
+[out]
+
 [case testCmdlineCfgEnableErrorCodeTrailingComma]
 # cmd: mypy .
 [file mypy.ini]