diff --git a/kcm/kcm_locl.h b/kcm/kcm_locl.h
index b565d64eb..e84687aef 100644
--- a/kcm/kcm_locl.h
+++ b/kcm/kcm_locl.h
@@ -154,7 +154,9 @@ extern char *door_path;
 extern size_t max_request;
 extern sig_atomic_t exit_flag;
 extern int name_constraints;
+#ifdef SUPPORT_DETACH
 extern int detach_from_console;
+#endif
 extern int disallow_getting_krbtgt;
 
 #if 0