diff --git a/lib/Simba/CA.pm b/lib/Simba/CA.pm
index 4a99828..9546367 100644
--- a/lib/Simba/CA.pm
+++ b/lib/Simba/CA.pm
@@ -685,7 +685,7 @@ sub linkdup {
             my $dev = defined $st ? $st->dev : "";;
             next unless $dev eq $my_dev;
             last if $self->{sessions_on_same_device} && @{ $self->{sessions_on_same_device} } > 30;
-            push @{ $self->{sessions_on_same_device} }, $r;
+            push @{ $self->{sessions_on_same_device} }, $r->{id}; # We only use the id
         }
 
     }