diff --git a/settings/config.settings.php b/settings/config.settings.php
index cc9347153..ee26fe158 100644
--- a/settings/config.settings.php
+++ b/settings/config.settings.php
@@ -70,4 +70,4 @@
 global $_acsf_site_name;
 if (isset($_acsf_site_name)) {
   $config["$split_filename_prefix.$_acsf_site_name"]['status'] = TRUE;
-}
\ No newline at end of file
+}
diff --git a/src/Robo/Commands/Blt/MigrateToDrsCommand.php b/src/Robo/Commands/Blt/MigrateToDrsCommand.php
index b17d9cf42..8173360d0 100644
--- a/src/Robo/Commands/Blt/MigrateToDrsCommand.php
+++ b/src/Robo/Commands/Blt/MigrateToDrsCommand.php
@@ -121,14 +121,18 @@ private function processSettingsFile(string $site): void {
    */
   private function updateSettingsFile(string $settingFile): void {
     $fileContent = file_get_contents($settingFile);
-
     // Let remove BLT require section from settings.php.
     $settingsFileContent = str_replace($this->bltSettingsWarning, '', $fileContent);
     if (substr_count($fileContent, $this->drsSettingsWarning) < 1) {
       $settingsFileContent = str_replace($this->bltSettingsWarning, $this->drsSettingsWarning, $fileContent);
     }
+    $bltConfigOverride = '$blt_override_config_directories';
+    // Check whether $blt_override_config_directories variable exists.
+    if (substr_count($settingsFileContent, $bltConfigOverride) < 1) {
+      $settingsFileContent = str_replace($bltConfigOverride, '$drs_override_config_directories', $settingsFileContent);
+    }
 
-    file_put_contents($settingFile, $fileContent);
+    file_put_contents($settingFile, $settingsFileContent);
   }
 
   /**