patch 8.0.0356: leaking memory when setting 'ttytype' commit https://github.com/vim/vim/commit/354796c19a0a4a048017059a0281938cc0b8f09a Author: Bram Moolenaar <Bram@vim.org> Date: Thu Feb 23 17:18:37 2017 +0100 patch 8.0.0356: leaking memory when setting 'ttytype' Problem: Leaking memory when setting 'ttytype'. Solution: Get free_oldval from the right option entry.

--- a/src/option.c
+++ b/src/option.c
@@ -5936,6 +5936,7 @@ did_set_string_option(
 	    /* Both 'term' and 'ttytype' point to T_NAME, only set the
 	     * P_ALLOCED flag on 'term'. */
 	    opt_idx = findoption((char_u *)"term");
+	    free_oldval = (options[opt_idx].flags & P_ALLOCED);
 	}
     }