diff --git a/build b/build
index 3a55a40..93b82b0 100755
--- a/build
+++ b/build
@@ -6,6 +6,7 @@ declare -rx BASH5_VERSION='5.2.15'
 declare -rx TCL_VERSION='8.6.13'
 declare -rx TCLLIB_VERSION='1.21'
 declare -rx MODULES_VERSION='3.2.10.2'
+declare -rx LMOD_VERSION='8.7'
 
 # for macOS only
 declare -rx GETOPT_VERSION='1.1.6'