diff --git a/src/grep.c b/src/grep.c
index fbeb089..8460e8a 100644
--- a/src/grep.c
+++ b/src/grep.c
@@ -2265,7 +2265,7 @@ There is NO WARRANTY, to the extent permitted by law.\n"),
               && !isdir (file))
             {
               if (included_patterns &&
-                  ! excluded_file_name (included_patterns, file))
+                  excluded_file_name (included_patterns, file))
                 continue;
               if (excluded_patterns &&
                   excluded_file_name (excluded_patterns, file))
