diff -u -r ../tmux-1.9a/tmux.c ./tmux.c
--- ../tmux-1.9a/tmux.c	2014-02-22 21:48:37.000000000 +0100
+++ ./tmux.c	2014-02-24 08:56:45.000000000 +0100
@@ -137,7 +137,7 @@
 	else if ((s = getenv("TMPDIR")) != NULL && *s != '\0')
 		xsnprintf(base, sizeof base, "%s/tmux-%u", s, uid);
 	else
-		xsnprintf(base, sizeof base, "%s/tmux-%u", _PATH_TMP, uid);
+		xsnprintf(base, sizeof base, "%s/tmux-%u", "@TERMUX_PREFIX@/tmp", uid);
 
 	if (mkdir(base, S_IRWXU) != 0 && errno != EEXIST)
 		return (NULL);