diff --git a/package.mask/all b/package.mask/all
index 48b9b0b..4aaad45 100644
--- a/package.mask/all
+++ b/package.mask/all
@@ -37,3 +37,4 @@
 >=virtual/jre-17
 >=www-client/firefox-bin-129
 >www-client/opera-13
+>=x11-libs/fltk-1.4