diff --git a/README.md b/README.md
index 3266d12..a11341f 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 1. Extract the contents of root to your filesystem root:
 ```
-tar x -zvC / -f tailscale-enabler-<version>.tgz
+tar x -zvC / -f openwrt-tailscale-enabler-<tag>.tgz
 ```
 
 2. Install the prerequisites for wget and tailscale:
diff --git a/generate-tar.sh b/generate-tar.sh
index ec41510..f56eff3 100755
--- a/generate-tar.sh
+++ b/generate-tar.sh
@@ -1,5 +1,11 @@
 #!/bin/sh
 
+if [ "$#" -ne 1 ]; then
+    echo "[ERR] Please pass in the tag for the file name."
+    exit 1
+fi
+
+filename="openwrt-tailscale-enabler-$1.tgz"
+
 # Falls back to busybox tar syntax if running on openwrt busybox tar rather than GNU tar
-filename="tailscale-enabler-$(git rev-parse HEAD | cut -c1-5).tgz"
 tar -czvf $filename usr/ etc/ || tar c -zvf $filename usr/ etc/