Index: src/bp-members/bp-members-admin.php
===================================================================
--- src/bp-members/bp-members-admin.php	(revision 10259)
+++ src/bp-members/bp-members-admin.php	(working copy)
@@ -414,7 +414,7 @@
 		);
 
 		// Only show sign-ups where they belong
-		if ( ! is_multisite() || is_network_admin() ) {
+		if ( ! is_multisite() || is_network_admin() || is_multisite() && defined( 'BP_ENABLE_MULTIBLOG' ) && BP_ENABLE_MULTIBLOG ) {
 
 			// Manage signups
 			$hooks['signups'] = $this->signups_page = add_users_page(