diff --git a/tools/filters/sorter.py b/tools/filters/sorter.py
index efa9b439228..b2862f6a958 100644
--- a/tools/filters/sorter.py
+++ b/tools/filters/sorter.py
@@ -45,7 +45,7 @@ def main():
 
         # grep comments
         grep_comments = "(grep '^#' %s) >> %s" % (input, output)
-        subprocess.check_call(grep_comments, shell=True)
+        subprocess.call(grep_comments, shell=True)
 
         # grep and sort columns
         sed_header_restore = ""