diff --git src/bp-core/bp-core-buddybar.php src/bp-core/bp-core-buddybar.php
index a854fd3..a3f40a1 100644
--- src/bp-core/bp-core-buddybar.php
+++ src/bp-core/bp-core-buddybar.php
@@ -295,6 +295,17 @@ function bp_core_new_subnav_item( $args = '' ) {
 	if ( empty( $item_css_id ) )
 		$item_css_id = $slug;
 
+	// In case of a single group, if the parent url doesn't concern the groups component,
+	// don't create the submenu
+	if ( bp_is_group() && bp_is_active( 'groups' ) ) {
+
+		$groups_root_slug = bp_get_groups_root_slug();
+
+		if ( ! preg_match( "/$groups_root_slug/", $parent_url ) ) {
+			return false;
+		}
+	}
+
 	$subnav_item = array(
 		'name'            => $name,
 		'link'            => trailingslashit( $link ),