1 files changed, 0 insertions, 1 deletions
diff --git a/diff.c b/diff.c
index a83409944b..f725d217de 100644
--- a/diff.c
+++ b/diff.c
@@ -5395,7 +5395,6 @@ static int diff_opt_line_prefix(const struct option *opt,
 
 	BUG_ON_OPT_NEG(unset);
 	options->line_prefix = optarg;
-	options->line_prefix_length = strlen(options->line_prefix);
 	graph_setup_line_prefix(options);
 	return 0;
 }