diff --git a/package.mask/all b/package.mask/all
index 54f5003..95730d2 100644
--- a/package.mask/all
+++ b/package.mask/all
@@ -8,3 +8,4 @@
 >=sys-devel/bison-3.7
 >=www-client/firefox-bin-69
 >www-client/opera-13
+>=x11-wm/fvwm-2.6.8