diff --git a/programs/demos/kmatrix/trunk/Tupfile.lua b/programs/demos/kmatrix/trunk/Tupfile.lua
index f275852cda..7520315ee4 100755
--- a/programs/demos/kmatrix/trunk/Tupfile.lua
+++ b/programs/demos/kmatrix/trunk/Tupfile.lua
@@ -1,8 +1,6 @@
 if tup.getconfig("NO_TCC") ~= "" then return end
-if tup.getconfig("HELPERDIR") == ""
-then
-  HELPERDIR = "../../../../programs"
-end
+
+HELPERDIR = (tup.getconfig("HELPERDIR") == "") and "../../.." or tup.getconfig("HELPERDIR")
 tup.include(HELPERDIR .. "/use_tcc.lua")
 
 link_tcc("main.c", "kmatrix");
diff --git a/programs/other/graph/branches/tcc_current/Tupfile.lua b/programs/other/graph/branches/tcc_current/Tupfile.lua
index 3d4d158c0f..e766b6d781 100755
--- a/programs/other/graph/branches/tcc_current/Tupfile.lua
+++ b/programs/other/graph/branches/tcc_current/Tupfile.lua
@@ -1,8 +1,6 @@
 if tup.getconfig("NO_TCC") ~= "" then return end
-if tup.getconfig("HELPERDIR") == ""
-then
-  HELPERDIR = "../../../../../programs"
-end
+
+HELPERDIR = (tup.getconfig("HELPERDIR") == "") and "../../../.." or tup.getconfig("HELPERDIR")
 tup.include(HELPERDIR .. "/use_tcc.lua")
 
 LIBS = "-lbox_lib"
diff --git a/programs/system/shell/Tupfile.lua b/programs/system/shell/Tupfile.lua
index cded93ee67..00d94fda5b 100644
--- a/programs/system/shell/Tupfile.lua
+++ b/programs/system/shell/Tupfile.lua
@@ -1,8 +1,6 @@
 if tup.getconfig("NO_TCC") ~= "" then return end
-if tup.getconfig("HELPERDIR") == ""
-then
-  HELPERDIR = "../../../programs"
-end
+
+HELPERDIR = (tup.getconfig("HELPERDIR") == "") and "../.." or tup.getconfig("HELPERDIR")
 tup.include(HELPERDIR .. "/use_tcc.lua")
 
 if tup.getconfig("LANG") == "ru"