diff -u b/core/includes/install.core.inc b/core/includes/install.core.inc
--- b/core/includes/install.core.inc
+++ b/core/includes/install.core.inc
@@ -447,15 +447,16 @@
     }
   }
 
-  // Use the language from the profile configuration, if available, to override
-  // the language previously set in the parameters.
-  if (isset($install_state['profile_info']['distribution']['langcode'])) {
-    $install_state['parameters']['langcode'] = $install_state['profile_info']['distribution']['langcode'];
-  }
-
   // Use the language from profile configuration if available.
   if (isset($install_state['profile_info']['config_install']) && $install_state['profile_info']['config_install']) {
-    $install_state['parameters']['langcode'] = $install_state['profile_info'] ['config']['system.site']['default_langcode'];
+    $install_state['parameters']['langcode'] = $install_state['profile_info']['config']['system.site']['default_langcode'];
+  }
+  else {
+    // Otherwise, Use the language from the profile configuration, if available,
+    // to override the language previously set in the parameters.
+    if (isset($install_state['profile_info']['distribution']['langcode'])) {
+      $install_state['parameters']['langcode'] = $install_state['profile_info']['distribution']['langcode'];
+    }
   }
 
   // Set the default language to the selected language, if any.