diff --git a/src/meanvariancefunction.py b/src/meanvariancefunction.py
index ff0ff476961404a66293a88ac2893f6b9bf8cf06..c6f31d59251cc24de09f7deabcd8add857e6267a 100644
--- a/src/meanvariancefunction.py
+++ b/src/meanvariancefunction.py
@@ -26,9 +26,8 @@ def mean_variance(filepath: str, output_dir: str = os.getcwd()+'/') -> str:
         ValueError: If there are no files in directory
 
     """
-
-    # Open each file in the input directory, raises error if no file is found
     files = [file for file in glob(filepath)]
+    # Open each file in the input directory, raises error if no file is found
 
     if len(files) == 0:
         raise ValueError('No files in directory:', filepath)