diff --git a/pisi/package.py b/pisi/package.py
index a04d0d35..72f1ef1e 100644
--- a/pisi/package.py
+++ b/pisi/package.py
@@ -48,10 +48,11 @@ class Package:
             # get current package name without version info (like tasma)
             current_pkg = util.pure_package_name(url.filename())
 
-            package_size = get_package(current_pkg).packageSize
-            if package_size:
-                package_size, symbol = util.human_readable_size(package_size)
-                ctx.ui.warning(_("Package size: %.2f %s" % (package_size, symbol)))
+            if ctx.packagedb.has_package(current_pkg):
+                package_size = ctx.packagedb.get_package(current_pkg).packageSize
+                if package_size:
+                    package_size, symbol = util.human_readable_size(package_size)
+                    ctx.ui.warning(_("Package size: %.2f %s" % (package_size, symbol)))
 
             # if package is installed (which means we are upgrading it),
             # calculate needed info