diff --git a/do-clang-format.py b/do-clang-format.py
index 80381fdf8c30513d0c13159e664819c18054bd8b..aed935521495fea099481862e7125c07f3157ac9 100755
--- a/do-clang-format.py
+++ b/do-clang-format.py
@@ -3,7 +3,7 @@
 Run clang-format with the style file in the CORSIKA repository.
 
 By default it finds new files and files with modifications with respect to the current master and prints
-the filenames which need clang-formatting. Returns 1 if there are files with need modifications and 0 otherwise.
+the filenames which need clang-formatting. Returns 1 if there are files which need modifications and 0 otherwise.
 """
 import argparse
 import subprocess as subp