diff --git a/core/modules/block/block.module b/core/modules/block/block.module
index db805566cfaa28bd88fdcd31c5bd78096bc1eebf..9afe529e7e4fb96f0ab832ac737b96ed00730aa5 100644
--- a/core/modules/block/block.module
+++ b/core/modules/block/block.module
@@ -785,7 +785,7 @@ function _block_load_blocks() {
 /**
  * Implements hook_block_list_alter().
  *
- * Checks the page, user role, and user-specific visibilty settings.
+ * Checks the page, user role, and user-specific visibility settings.
  * Removes the block if the visibility conditions are not met.
  */
 function block_block_list_alter(&$blocks) {