1 files changed, 1 insertions, 1 deletions
diff --git a/diff.c b/diff.c
index 32142dba64..35d3f07385 100644
--- a/diff.c
+++ b/diff.c
@@ -25,7 +25,7 @@
 static int diff_detect_rename_default;
 static int diff_rename_limit_default = 400;
 static int diff_suppress_blank_empty;
-int diff_use_color_default = -1;
+static int diff_use_color_default = -1;
 static const char *diff_word_regex_cfg;
 static const char *external_diff_cmd_cfg;
 int diff_auto_refresh_index = 1;