diff --git a/scripts/update-grumphp-command.php b/scripts/update-grumphp-command.php
new file mode 100755
index 0000000..58f770d
--- /dev/null
+++ b/scripts/update-grumphp-command.php
@@ -0,0 +1,28 @@
+#!/bin/bash
+
+#
+# Script to update the grumphp.yml file to use both Lando and DDEV on GIT commit.
+#
+# It's run on composer install, only if grumphp.yml exists and if it contains:
+# EXEC_GRUMPHP_COMMAND: lando php
+# This is the previous default we've used.
+#
+
+# Path to the grumphp.yml file
+config_file="grumphp.yml"
+
+if [ -f "grumphp.yml" ]; then
+    sed -i "s#EXEC_GRUMPHP_COMMAND: lando php#EXEC_GRUMPHP_COMMAND: \"[ -d .ddev/traefik/ ] \&\& GRUMPHP_COMMAND='ddev php' || GRUMPHP_COMMAND='lando php' \&\& \$GRUMPHP_COMMAND\"#g" grumphp.yml
+
+    # Did sed replace?
+    if [ $? -eq 0 ]; then
+        # Add a message to the user.
+        color_red="\033[0;31m"
+        color_reset="\033[0m"
+        printf "${color_red}Added DDEV support to $config_file.\n"
+        echo "Please run \"ddev grumphp git:init\" for the changes to take affect."
+        printf "${color_reset}"
+    fi
+
+
+fi
diff --git a/src/InstallHelperPlugin.php b/src/InstallHelperPlugin.php
index 7f234a9..cff0d29 100644
--- a/src/InstallHelperPlugin.php
+++ b/src/InstallHelperPlugin.php
@@ -120,8 +120,8 @@ public function onWunderIoDdevDrupalPackageInstall(PackageEvent $event) {
 
     self::deployDdevFiles();
 
-    #$output = shell_exec('bash vendor/wunderio/lando-drupal/scripts/load_extensions.sh');
-    #$this->io->write("<info>{$output}</info>");
+    $output = shell_exec('bash vendor/wunderio/ddev-drupal/scripts/update-grumphp-command.php');
+    $this->io->write("<info>{$output}</info>");
   }
 
   /**