diff --git a/src/add-ons/print/drivers/pdf/source/Cache.h b/src/add-ons/print/drivers/pdf/source/Cache.h
index 45887b686d..7ec2d26484 100644
--- a/src/add-ons/print/drivers/pdf/source/Cache.h
+++ b/src/add-ons/print/drivers/pdf/source/Cache.h
@@ -33,7 +33,6 @@ THE SOFTWARE.
 #include "Utils.h"
 
 class CacheItem;
-class CacheItemReference;
 
 // CacheItemDescription
 class CIDescription {