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-rw-r--r--lib/private/cache/file.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/private/cache/file.php b/lib/private/cache/file.php
index feee9cc32b6..4e7c065678e 100644
--- a/lib/private/cache/file.php
+++ b/lib/private/cache/file.php
@@ -48,7 +48,7 @@ class File {
/**
* Returns the size of the stored/cached data
*
- * @param $key
+ * @param string $key
* @return int
*/
public function size($key) {