diff --git a/README.md b/README.md
index 3e19d32..cd44ebd 100644
--- a/README.md
+++ b/README.md
@@ -2,24 +2,24 @@
 Wrapper to simplify backups with borgbackup
 
 # Installation
-Put the [script](src/borgwrapper.sh) somewhere practical
+Put the [script](src/borgwrapper) somewhere practical
 
-    cp borgwrapper.sh /usr/local/bin/borgwrapper
+    cp borgwrapper /usr/local/bin/borgwrapper
     chown root. /usr/local/bin/borgwrapper
     chmod 750 /usr/local/bin/borgwrapper
 
 # Configuration
-By default borgwrapper expects the configuration to be located at `/etc/borgwrapper/config.sh`.
-An example configuration file is included in [config.sh.example](src/config.sh.example).
+By default borgwrapper expects the configuration to be located at `/etc/borgwrapper/config`.
+An example configuration file is included in [config.example](src/config.example).
 Ensure restrictive permissions on this file as it exposes the passphrase.
 
-    chown root. config.sh
-    chmod 600 config.sh
+    chown root. config
+    chmod 600 config
 
 # Scheduling
 ## systemd
 Copy the example systemd [unit files](systemd/) to `/etc/systemd/system/`. Then for each
-configuration file in `/etc/borgwrapper/<config_name>.sh` do:
+configuration file in `/etc/borgwrapper/<config_name>` do:
 
     systemctl enable borgwrapper-backup@<config_name>.timer
     systemctl enable borgwrapper-verify@<config_name>.timer
@@ -89,5 +89,5 @@ Run in subshell if you do not want the passphrase stored in the current shell af
 
 Examples:
 
-    (. /etc/borgwrapper/config.sh; export BORG_PASSPHRASE; borg mount "$BORG_REPO" /mnt)
-    (. /etc/borgwrapper/config.sh; export BORG_PASSPHRASE; borg list "$BORG_REPO")
+    (. /etc/borgwrapper/config; export BORG_PASSPHRASE; borg mount "$BORG_REPO" /mnt)
+    (. /etc/borgwrapper/config; export BORG_PASSPHRASE; borg list "$BORG_REPO")
diff --git a/src/borgwrapper.sh b/src/borgwrapper
similarity index 98%
rename from src/borgwrapper.sh
rename to src/borgwrapper
index d1b9d39..d45bad9 100755
--- a/src/borgwrapper.sh
+++ b/src/borgwrapper
@@ -1,11 +1,11 @@
 #!/bin/bash
 
-VERSION="1.3.0"
+VERSION="1.4.0"
 
 
 print_usage () {
     cat << EOF
-Usage: $(basename "${BASH_SOURCE[0]}") [OPTIONS] MODE
+Usage: borgwrapper [OPTIONS] MODE
 
 OPTIONS
     -c CONFIG_FILE
@@ -170,7 +170,7 @@ exit_clean () {
 
 
 # Default parameters
-CONFIG="/etc/borgwrapper/config.sh"
+CONFIG="/etc/borgwrapper/config"
 DRY_RUN=false
 BORG="/usr/bin/borg"
 LOCKDIR="/run/lock/borgwrapper"
diff --git a/src/config.sh.example b/src/config.example
similarity index 100%
rename from src/config.sh.example
rename to src/config.example
diff --git a/systemd/borgwrapper-backup@.service b/systemd/borgwrapper-backup@.service
index a9adc0c..4d3d614 100644
--- a/systemd/borgwrapper-backup@.service
+++ b/systemd/borgwrapper-backup@.service
@@ -4,7 +4,7 @@ After=network.target
 
 [Service]
 Type=oneshot
-ExecStart=/usr/local/bin/borgwrapper -c /etc/borgwrapper/%i.sh backup
+ExecStart=/usr/local/bin/borgwrapper -c /etc/borgwrapper/%i backup
 Nice=10
 User=root
 Group=root
diff --git a/systemd/borgwrapper-verify@.service b/systemd/borgwrapper-verify@.service
index 0638867..5c51a9d 100644
--- a/systemd/borgwrapper-verify@.service
+++ b/systemd/borgwrapper-verify@.service
@@ -4,7 +4,7 @@ After=network.target borgwrapper-backup@%i.service
 
 [Service]
 Type=oneshot
-ExecStart=/usr/local/bin/borgwrapper -c /etc/borgwrapper/%i.sh verify
+ExecStart=/usr/local/bin/borgwrapper -c /etc/borgwrapper/%i verify
 Nice=10
 User=root
 Group=root