diff --git a/programs/network/vncc/Tupfile.lua b/programs/network/vncc/Tupfile.lua
index 6c135cea24..994a3a27e2 100644
--- a/programs/network/vncc/Tupfile.lua
+++ b/programs/network/vncc/Tupfile.lua
@@ -1,2 +1,2 @@
 if tup.getconfig("NO_FASM") ~= "" then return end
-tup.rule("vncc.asm", "fasm %f %o " .. tup.getconfig("KPACK_CMD"), "vncc")
+tup.rule("vncc.asm", "fasm -m 32768 %f %o " .. tup.getconfig("KPACK_CMD"), "vncc")