diff --git a/modules/m3/applications/nbo/7.0/i4.lua b/modules/m3/applications/nbo/7.0/i4.lua
index ac2e4f33..89b60c90 100644
--- a/modules/m3/applications/nbo/7.0/i4.lua
+++ b/modules/m3/applications/nbo/7.0/i4.lua
@@ -11,6 +11,7 @@ prepend_path("PATH", root)
 setenv("GENEXE", pathJoin(bin, "gennbo." .. int .. ".exe"))
 setenv("NBOEXE", pathJoin(bin, "nbo7." .. int .. ".exe"))
 setenv("INT", int)
+setenv("NBOBIN", bin)
 
 help([[Name: TCI/NBO Software (i4)
 Version: 7.0
diff --git a/modules/m3/applications/nbo/7.0/i8.lua b/modules/m3/applications/nbo/7.0/i8.lua
index 17409873..deb6a291 100644
--- a/modules/m3/applications/nbo/7.0/i8.lua
+++ b/modules/m3/applications/nbo/7.0/i8.lua
@@ -11,6 +11,7 @@ prepend_path("PATH", root)
 setenv("GENEXE", pathJoin(bin, "gennbo." .. int .. ".exe"))
 setenv("NBOEXE", pathJoin(bin, "nbo7." .. int .. ".exe"))
 setenv("INT", int)
+setenv("NBOBIN", bin)
 
 help([[Name: TCI/NBO Software (i8)
 Version: 7.0