diff -uNr feh-3.0/src/slideshow.c feh-3.0.mod/src/slideshow.c
--- feh-3.0/src/slideshow.c	2018-11-09 18:17:58.000000000 +0200
+++ feh-3.0.mod/src/slideshow.c	2018-11-23 23:31:02.923962780 +0200
@@ -455,7 +455,7 @@
 				if (filelist_tmppath != NULL) {
 					strncat(ret, filelist_tmppath, sizeof(ret) - strlen(ret) - 1);
 				} else {
-					filelist_tmppath = feh_unique_filename("/tmp/","filelist");
+					filelist_tmppath = feh_unique_filename("@TERMUX_PREFIX@/tmp/","filelist");
 					feh_write_filelist(filelist, filelist_tmppath);
 					strncat(ret, filelist_tmppath, sizeof(ret) - strlen(ret) - 1);
 				}