diff -ruN radare2-5.4.0/libr/include/r_util/r_file.h radare2-5.4.0.mod/libr/include/r_util/r_file.h
--- radare2-5.4.0/libr/include/r_util/r_file.h	2021-08-20 09:25:10.617372300 -0300
+++ radare2-5.4.0.mod/libr/include/r_util/r_file.h	2021-08-20 10:48:00.361368745 -0300
@@ -8,7 +8,7 @@
 #include <r_util/r_mem.h>
 
 #ifndef SHELL_PATH
-#define SHELL_PATH "/bin/sh"
+#define SHELL_PATH "@TERMUX_PREFIX@/bin/sh"
 #endif
 
 #ifndef TERMUX_PREFIX
diff -ruN radare2-5.4.0/libr/socket/run.c radare2-5.4.0.mod/libr/socket/run.c
--- radare2-5.4.0/libr/socket/run.c	2021-08-20 09:25:10.705372300 -0300
+++ radare2-5.4.0.mod/libr/socket/run.c	2021-08-20 10:46:52.221368794 -0300
@@ -1205,12 +1205,8 @@ R_API int r_run_start(RRunProfile *p) {
 #if __UNIX__
 			close (0);
 			close (1);
-			char *shell_env = r_sys_getenv ("SHELL");
-			char *bin_sh = (R_STR_ISNOTEMPTY (shell_env) && r_file_exists (shell_env))
-				? shell_env
-				: r_file_path ("sh");
-			// Honor $SHELL ?
-			if (R_STR_ISNOTEMPTY (bin_sh)) {
+			char *bin_sh = r_file_binsh ();
+			if (bin_sh != NULL) {
 				exit (execl (bin_sh, bin_sh, "-c", p->_system, NULL));
 			} else {
 				exit (r_sys_cmd (p->_system));