diff --git a/tools/test/bin/ogroup-opts b/tools/test/bin/ogroup-opts
index cdc623f..b15ced9 100644
--- a/tools/test/bin/ogroup-opts
+++ b/tools/test/bin/ogroup-opts
@@ -22,6 +22,7 @@
 
 complete -F _stc-opts stc
 complete -F _stc-opts stw
+complete -F _stc-opts stcs
 
 
 # Tab completion settings for stl