1 files changed, 2 insertions, 0 deletions
diff --git a/perl-install/install/pkgs.pm b/perl-install/install/pkgs.pm
index 75c15b525..c6d146c78 100644
--- a/perl-install/install/pkgs.pm
+++ b/perl-install/install/pkgs.pm
@@ -2,6 +2,7 @@ package install::pkgs;
 
 use strict;
 use feature 'state';
+use Math::Int64 ':native_if_available', 'int64';
 
 BEGIN {
     # needed before "use URPM"
@@ -726,6 +727,7 @@ sub selectPackagesAlreadyInstalled {
     my %sizes;
     $packages->{rpmdb}->traverse(sub {
 	my ($p) = @_;      
+	$sizes{$p->name} ||= int64(0);
 	$sizes{$p->name} += $p->size;
     });
     $packages->{sizes} = \%sizes;