diff --git a/migrations/1785543725.sh b/migrations/1785543725.sh
index 71e1abea..cafd1f80 100644
--- a/migrations/1785543725.sh
+++ b/migrations/1785543725.sh
@@ -11,10 +11,11 @@ add_whatsapp_slim_extension() {
   if grep -q "^--load-extension=" "$file"; then
     sed -i --follow-symlinks "s|^--load-extension=\(.*\)$|--load-extension=\1,$WHATSAPP_SLIM_EXT|" "$file"
   else
+    [[ -n $(tail -c1 "$file") ]] && echo >>"$file"
     echo "--load-extension=$WHATSAPP_SLIM_EXT" >>"$file"
   fi
 }
 
-for conf in chromium chrome google-chrome brave brave-beta brave-nightly brave-origin-beta microsoft-edge-stable; do
+for conf in chromium chrome google-chrome brave brave-beta brave-nightly brave-origin microsoft-edge-stable; do
   add_whatsapp_slim_extension "$HOME/.config/$conf-flags.conf"
 done
diff --git a/migrations/1785591762.sh b/migrations/1785591762.sh
new file mode 100644
index 00000000..c589085a
--- /dev/null
+++ b/migrations/1785591762.sh
@@ -0,0 +1,19 @@
+echo "Add WhatsApp Slim extension to Brave Origin flags for existing installs"
+
+WHATSAPP_SLIM_EXT="$OMARCHY_PATH/default/chromium/extensions/whatsapp-slim"
+
+add_whatsapp_slim_extension() {
+  local file=$1
+
+  [[ -f $file ]] || return 0
+  grep -q "extensions/whatsapp-slim" "$file" && return 0
+
+  if grep -q "^--load-extension=" "$file"; then
+    sed -i --follow-symlinks "s|^--load-extension=\(.*\)$|--load-extension=\1,$WHATSAPP_SLIM_EXT|" "$file"
+  else
+    [[ -n $(tail -c1 "$file") ]] && echo >>"$file"
+    echo "--load-extension=$WHATSAPP_SLIM_EXT" >>"$file"
+  fi
+}
+
+add_whatsapp_slim_extension "$HOME/.config/brave-origin-flags.conf"