diff --git a/qbittorrent/rootfs/etc/cont-init.d/93-openvpn.sh b/qbittorrent/rootfs/etc/cont-init.d/93-openvpn.sh
index 6bf6d4d03..412c38772 100755
--- a/qbittorrent/rootfs/etc/cont-init.d/93-openvpn.sh
+++ b/qbittorrent/rootfs/etc/cont-init.d/93-openvpn.sh
@@ -34,7 +34,7 @@ if bashio::config.true 'openvpn_enabled'; then
         line_number=0
         while read -r line; do
             # Increment the line number
-            ((line_number++))
+            ((line_number=line_number+1))
 
             # Check if lines starting with auth-user-pass have a valid argument
             ###################################################################
@@ -46,7 +46,7 @@ if bashio::config.true 'openvpn_enabled'; then
                     # Insert to explain why a comment is made
                     sed -i "${line_number}i # The following line is commented out as does not contain a valid argument" "$file"
                     # Increment as new line added
-                    ((line_number++))
+                    ((line_number=line_number+1))
                     # Comment out the line
                     sed -i "${line_number}s/^/# /" "$file"
                     # Go to next line