diff --git a/linux/install.sh b/linux/install.sh
index 407e4e6..8c43020 100755
--- a/linux/install.sh
+++ b/linux/install.sh
@@ -42,8 +42,8 @@ cp -r blitztext "$VENV/lib/python"*/site-packages/
 # On Debian/Ubuntu, python3-gi lives in /usr/lib/python3/dist-packages — the
 # generic (non-versioned) path that venvs don't include even with
 # --system-site-packages. A .pth file adds it to sys.path at startup.
-echo "/usr/lib/python3/dist-packages" \
-    > "$VENV/lib/python"*/site-packages/debian-system-packages.pth
+SITE_PKG="$("$VENV/bin/python" -c "import site; print(site.getsitepackages()[0])")"
+echo "/usr/lib/python3/dist-packages" > "$SITE_PKG/debian-system-packages.pth"
 
 echo "==> Writing default config (if absent)"
 "$VENV/bin/python" -m blitztext config-path