1 files changed, 1 insertions, 1 deletions

diff --git a/plugins/negate.c b/plugins/negate.c
index 3e4c493e..c1c0bc57 100644
--- a/plugins/negate.c
+++ b/plugins/negate.c
@@ -226,7 +226,7 @@ process_arguments (int argc, char **argv)
         };
 
         while (1) {
-                c = getopt_long (argc, argv, "hVt:",
+                c = getopt_long (argc, argv, "+hVt:",
                                  long_options, &option_index);
 
                 if (c == -1 || c == EOF)