1 files changed, 1 insertions, 1 deletions
diff --git a/src/nvim/diff.c b/src/nvim/diff.c
index 55d8b7e36b..4ade6072e6 100644
--- a/src/nvim/diff.c
+++ b/src/nvim/diff.c
@@ -1423,7 +1423,7 @@ void diff_win_options(win_T *wp, int addbuf)
     }
     wp->w_p_fdc_save = vim_strsave(wp->w_p_fdc);
   }
-  xfree(wp->w_p_fdc);
+  free_string_option(wp->w_p_fdc);
   wp->w_p_fdc = (char_u *)xstrdup("2");
   assert(diff_foldcolumn >= 0 && diff_foldcolumn <= 9);
   snprintf((char *)wp->w_p_fdc, STRLEN(wp->w_p_fdc) + 1, "%d", diff_foldcolumn);