diff --git a/install.sh b/install.sh
index 5a70652..04f3ff8 100644
--- a/install.sh
+++ b/install.sh
@@ -1,3 +1,5 @@
+#!/bin/sh
+
 if [ "$EUID" -ne 0 ]; then
   echo not root
   exit 1
diff --git a/nman.sh b/nman.sh
index 02f1629..00da2a7 100644
--- a/nman.sh
+++ b/nman.sh
@@ -1,2 +1,3 @@
+#!/bin/sh
 cd /opt
 python3 -c 'import nman; nman.update()'
\ No newline at end of file