diff --git a/scripts/ffmpeg.sh b/scripts/ffmpeg.sh
index c761711..09c515b 100755
--- a/scripts/ffmpeg.sh
+++ b/scripts/ffmpeg.sh
@@ -1,3 +1,4 @@
+#!/bin/sh
 mkdir ~/ffmpeg_sources
 cd ~/ffmpeg_sources
 wget -O fdk-aac.zip https://github.com/mstorsjo/fdk-aac/zipball/master
diff --git a/scripts/reptyr.sh b/scripts/reptyr.sh
index 9c95ed0..8cb8ede 100755
--- a/scripts/reptyr.sh
+++ b/scripts/reptyr.sh
@@ -1,3 +1,3 @@
-#!/bin/zsh
+#!/bin/sh
 sudo sh -c "echo \"kernel.yama.ptrace_scope = 0\" > /etc/sysctl.d/10-ptrace.conf"
 sudo sysctl -p /etc/sysctl.d/10-ptrace.conf