diff --git a/README.md b/README.md
index c7f7f1a..a05eaf9 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,8 @@
 # Revanced Build
-This repo template will allow one to build [ReVanced](https://github.com/revanced/) apps automatically. Set it up to run periodically using cron. It uses [telegram.sh](https://github.com/fabianonline/telegram.sh) and [telegram-upload](https://github.com/Nekmo/telegram-upload) to messages.
+This repo template will allow one to build [ReVanced](https://github.com/revanced/) apps automatically. It uses [telegram.sh](https://github.com/fabianonline/telegram.sh) and [telegram-upload](https://github.com/Nekmo/telegram-upload) to messages.
+
+## How to use
+Just run `./build_revanced <working-directory> (force/clean/experimental)`. Might be a good idea to set it up to run periodically using cron. 
 
 ## Notes
 - The script will download the **automatically selected compatible version** (using compatibility of patches as listed [here](https://github.com/revanced/revanced-patches#list-of-available-patches)) of Youtube on APKMirror, **NOT** latest official version on Google Play.
diff --git a/build_revanced.sh b/build_revanced.sh
index 9b41cac..1cbee1d 100755
--- a/build_revanced.sh
+++ b/build_revanced.sh
@@ -9,7 +9,13 @@ timestamp=$(date '+%s')
 patch_file="./patches.txt"
 
 # Set working directory and current directory
-WDIR="$1"
+if [ -d "$1" ]; then
+    WDIR="$1"
+else
+    echo "Working directory not provided"
+    exit -1
+fi
+
 ODIR="$PWD"
 
 # Get line numbers where included & excluded patches start from. 
@@ -57,12 +63,12 @@ populate_patches() {
 ## Main
 
 # cleanup to fetch new revanced on next run
-if [[ "$1" == "clean" ]]; then
+if [[ "$2" == "clean" ]]; then
     rm -f revanced-cli.jar revanced-integrations.apk revanced-patches.jar
     exit
 fi
 
-if [[ "$1" == "experimental" ]]; then
+if [[ "$2" == "experimental" ]]; then
     EXPERIMENTAL="--experimental"
 fi
 
@@ -91,7 +97,7 @@ for artifact in "${!artifacts[@]}"; do
 done
 
 # Exit if no updates happened
-if [[ $flag==false && "$1" != "force" ]]; then
+if [[ $flag==false && "$2" != "force" ]]; then
     echo "Nothing to update" | tee -a build.log
     exit
 fi
diff --git a/download_apkmirror.sh b/download_apkmirror.sh
index 7696117..2aad548 100755
--- a/download_apkmirror.sh
+++ b/download_apkmirror.sh
@@ -81,7 +81,12 @@ dl_ytm() {
 
 # Get into the build directory
 
-cd "$1"
+if [ -z "$1" ]; then
+    cd "$1"
+else
+    echo "Working directory not provided"
+    exit -1
+fi
 
 ## Main