diff -u -r ../screen-4.5.1/fileio.c ./fileio.c
--- ../screen-4.5.1/fileio.c	2017-02-25 16:35:35.132808149 +0100
+++ ./fileio.c	2017-04-24 23:26:50.355204362 +0200
@@ -721,8 +721,8 @@
 #ifdef SIGPIPE
       signal(SIGPIPE, SIG_DFL);
 #endif
-      execl("/bin/sh", "sh", "-c", cmd, (char *)0);
-      Panic(errno, "/bin/sh");
+      execl("@TERMUX_PREFIX@/bin/sh", "sh", "-c", cmd, (char *)0);
+      Panic(errno, "@TERMUX_PREFIX@/bin/sh");
     default:
       break;
   }