diff --git a/README.sethlabels.md b/README.sethlabels.md
index 0283512..8ae2952 100644
--- a/README.sethlabels.md
+++ b/README.sethlabels.md
@@ -54,6 +54,8 @@ If you'd rather build the artifacts yourself instead of downloading a release:
 ```
 git clone https://git.sethpc.xyz/Seth/sethLabels.git
 cd sethLabels
+git remote add upstream https://github.com/j-evins/glabels-qt.git
+git fetch upstream
 ./scripts/lib/deps-debian.sh        # check / install build deps
 ./scripts/build-deb.sh              # → build/deb/glabels-qt_*.deb
 ./scripts/build-appimages.sh        # → sethlabels-{gui,batch}-*.AppImage