diff --git a/zerotier/add_ip_rule.sh b/zerotier/add_ip_rule.sh
old mode 100644
new mode 100755
index ff8b6a9..6d4c522
--- a/zerotier/add_ip_rule.sh
+++ b/zerotier/add_ip_rule.sh
@@ -1 +1,3 @@
+#!/bin/sh
 ip rule add from all lookup main pref 1
+
diff --git a/zerotier/join.sh b/zerotier/join.sh
old mode 100644
new mode 100755
index c731fca..e7c9a29
--- a/zerotier/join.sh
+++ b/zerotier/join.sh
@@ -1,3 +1,4 @@
+#!/bin/sh
 export LD_LIBRARY_PATH=/data/adb/zerotier/lib
 cd /data/adb/zerotier/
 cat /sdcard/Android/zerotier/network_id.txt | xargs ./zerotier-cli -D./home join
diff --git a/zerotier/leave.sh b/zerotier/leave.sh
old mode 100644
new mode 100755
index 4dc40a0..bb02f13
--- a/zerotier/leave.sh
+++ b/zerotier/leave.sh
@@ -1,3 +1,4 @@
+#!/bin/sh
 export LD_LIBRARY_PATH=/data/adb/zerotier/lib
 cd /data/adb/zerotier
 cat /sdcard/Android/zerotier/network_id.txt | xargs ./zerotier-cli -D./home leave
diff --git a/zerotier/lib/ld-android.so b/zerotier/lib/ld-android.so
old mode 100644
new mode 100755
diff --git a/zerotier/lib/libc.so b/zerotier/lib/libc.so
old mode 100644
new mode 100755
diff --git a/zerotier/lib/libdl.so b/zerotier/lib/libdl.so
old mode 100644
new mode 100755
diff --git a/zerotier/lib/libm.so b/zerotier/lib/libm.so
old mode 100644
new mode 100755
diff --git a/zerotier/restart.sh b/zerotier/restart.sh
old mode 100644
new mode 100755
diff --git a/zerotier/start.sh b/zerotier/start.sh
old mode 100644
new mode 100755