diff --git a/perl_lib/EPrints/DataObj/Document.pm b/perl_lib/EPrints/DataObj/Document.pm
index f665328e..53c611ae 100644
--- a/perl_lib/EPrints/DataObj/Document.pm
+++ b/perl_lib/EPrints/DataObj/Document.pm
@@ -1644,6 +1644,9 @@ sub thumbnail_url
 
 	if( $self->{session}->{preparing_static_page} )
 	{
+        if( $self->{session}->get_conf("securehost") ){
+    		return $self->{session}->config( "https_url" ) . "/" . $path;
+        }
 		return $self->{session}->config( "http_url" ). "/" . $path;
 	}