diff --git a/src/missing.py b/src/missing.py
index 90c6dbd..f99df89 100644
--- a/src/missing.py
+++ b/src/missing.py
@@ -25,13 +25,13 @@ def __init__(self, exclude: Sequence[str]):
         exclude = [os.path.normpath(path) for path in exclude]
         logger.debug(f'{exclude=}')
 
-        files_excluded = set()
+        files_included = set()
         for file in files:
             if all([not file.startswith(e) for e in exclude]):
-                files_excluded.add(file)
-        logger.debug(f'{files_excluded=}')
+                files_included.add(file)
+        logger.debug(f'{files_included=}')
 
-        self.files = files_excluded
+        self.files = files_included
 
     def run(self) -> int:
         """Return 1 if there are missing files, otherwise 0"""