diff --git a/src/image/ImagePool.cc b/src/image/ImagePool.cc
index 255b46de4c..61c42671e3 100644
--- a/src/image/ImagePool.cc
+++ b/src/image/ImagePool.cc
@@ -260,7 +260,6 @@ int ImagePool::disk_attribute(VectorAttribute *  disk,
 
         if ( img == 0 )
         {
-            error_str = "Cannot acquire image, it does not exists or in use.";
             return -1;
         }
     }