--- a/src/astra/core/spawn.c
+++ b/src/astra/core/spawn.c
@@ -148,9 +148,7 @@
 static
 void perror_s(const char *s)
 {
-    const char *msg = "Unknown error";
-    if (errno < sys_nerr && sys_errlist[errno] != NULL)
-        msg = sys_errlist[errno];
+    const char *msg = strerror(errno);
 
     size_t slen;
     ssize_t ret;
@@ -212,7 +210,7 @@
         setsid();
 
         /* try to run command */
-        execle("/bin/sh", "sh", "-c", command, NULL, environ);
+        execle("@TERMUX_PREFIX@/bin/sh", "sh", "-c", command, NULL, environ);
         perror_s("execle(): /bin/sh");
         _exit(127);
     }