diff --git a/Internal-Technical-Document-Long-Term-Support-LTS.md b/Internal-Technical-Document-Long-Term-Support-LTS.md
index 96bb5382..bfbd040b 100644
--- a/Internal-Technical-Document-Long-Term-Support-LTS.md
+++ b/Internal-Technical-Document-Long-Term-Support-LTS.md
@@ -3,7 +3,7 @@
 * Only branches with "lts" prefix are suitable for long term support: GitHub release web functionality creates _tags_, human create lts_yyyymmXXX branch from that tag. Note: no dots in branch names!
 * we pick commits from master into LTS branches
 * after each commit if picked we add/pick Changelog.md
-* use https://github.com/rusefi/rusefi/actions/workflows/build-firmware.yaml to trigger builds
+* use https://github.com/rusefi/rusefi/actions/workflows/build-firmware.yaml to trigger builds (use "LTS build" checkbox to get LTS handling)
 * See https://rusefi.com/build_server/lts/ for LTS artifacts
 
 See https://github.com/rusefi/rusefi/labels/LTS