diff --git a/debian.control b/debian.control
index 2a6c0b9..2e8e3f5 100644
--- a/debian.control
+++ b/debian.control
@@ -7,6 +7,7 @@ Standards-Version: 4.5.0
 Package: system-user-gromox
 Architecture: all
 Pre-Depends: ${misc:Pre-Depends}
+Provides: system-group-gromox, system-group-gromoxcf
 Depends: adduser, ${misc:Depends}
 Description: System user and group gromox
  .