diff --git a/core/modules/block/block.install b/core/modules/block/block.install
new file mode 100644
index 0000000..7010f59
--- /dev/null
+++ b/core/modules/block/block.install
@@ -0,0 +1,18 @@
+<?php
+
+/**
+ * @file
+ * Contains install and update functions for Block.
+ */
+
+use Drupal\Core\Cache\Cache;
+
+/**
+ * Implements hook_install().
+ */
+function block_install() {
+  // Because the Block module upon installation unconditionally overrides all
+  // HTML output by selecting a different page display variant, we must
+  // invalidate all cached HTML output.
+  Cache::invalidateTags(['rendered']);
+}
diff --git a/core/modules/block/block.module b/core/modules/block/block.module
index 9ce0ac2..7862e66 100644
--- a/core/modules/block/block.module
+++ b/core/modules/block/block.module
@@ -7,7 +7,6 @@
 
 use Drupal\block\BlockInterface;
 use Drupal\Component\Utility\Html;
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\Core\Url;
 use Drupal\language\ConfigurableLanguageInterface;
@@ -282,13 +281,3 @@ function block_configurable_language_delete(ConfigurableLanguageInterface $langu
     }
   }
 }
-
-/**
- * Implements hook_install().
- */
-function block_install() {
-  // Because the Block module upon installation unconditionally overrides all
-  // HTML output by selecting a different page display variant, we must
-  // invalidate all cached HTML output.
-  Cache::invalidateTags(['rendered']);
-}