1 files changed, 11 insertions, 1 deletions
diff --git a/includes/HTMLFileCache.php b/includes/HTMLFileCache.php
index 68cafa242c18..d205624e1aeb 100644
--- a/includes/HTMLFileCache.php
+++ b/includes/HTMLFileCache.php
@@ -14,6 +14,7 @@
  * - $wgCachePages
  * - $wgCacheEpoch
  * - $wgUseFileCache
+ * - $wgCacheDirectory
  * - $wgFileCacheDirectory
  * - $wgUseGzip
  *
@@ -30,7 +31,16 @@ class HTMLFileCache {
 
 	public function fileCacheName() {
 		if( !$this->mFileCache ) {
-			global $wgFileCacheDirectory, $wgRequest;
+			global $wgCacheDirectory, $wgFileCacheDirectory, $wgRequest;
+
+			if ( $wgFileCacheDirectory ) {
+				$dir = $wgFileCacheDirectory;
+			} elseif ( $wgCacheDirectory ) {
+				$dir = "$wgCacheDirectory/html";
+			} else {
+				throw new MWException( 'Please set $wgCacheDirectory in LocalSettings.php if you wish to use the HTML file cache' );
+			}
+
 			# Store raw pages (like CSS hits) elsewhere
 			$subdir = ($this->mType === 'raw') ? 'raw/' : '';
 			$key = $this->mTitle->getPrefixedDbkey();