diff --git a/install.sh b/install.sh
index 0a700d994421..0db2b258577c 100755
--- a/install.sh
+++ b/install.sh
@@ -194,6 +194,7 @@ fi
 
 if [ -n "$PLOTTER_INSTALL" ]; then
   set +e
+  # shellcheck disable=SC1091
   . .venv/bin/activate
   ./install-plotter.sh bladebit
   ./install-plotter.sh madmax