Index: bp-groups/bp-groups-templatetags.php
===================================================================
--- bp-groups/bp-groups-templatetags.php	(revision 3021)
+++ bp-groups/bp-groups-templatetags.php	(working copy)
@@ -115,7 +115,7 @@
 			$this->group = new BP_Groups_Group( $this->group->group_id, true );
 		else {
 			if ( $this->group )
-				wp_cache_set( 'groups_group_nouserdata_' . $group->group_id, $this->group, 'bp' );
+				wp_cache_set( 'groups_group_nouserdata_' . $this->group->group_id, $this->group, 'bp' );
 		}
 
 		if ( 0 == $this->current_group ) // loop has just started