@@ -3,6 +3,7 @@
 
 # You can set these variables from the command line, and also
 # from the environment for the first two.
+ROOTDIR       = ..
 SOURCEDIR     = .
 SOURCES       =
 BUILDDIR      = _build
@@ -39,7 +40,7 @@ text: build
 venv:
 	$(PYTHON) -m venv $(VENVDIR)
 	$(VENVDIR)/bin/python3 -m pip install -U pip
-	$(VENVDIR)/bin/python3 -m pip install --group docs
+	$(VENVDIR)/bin/python3 -m pip install --group $(ROOTDIR)/pyproject.toml:docs
 	@echo "The venv has been created in the $(VENVDIR) directory"
 
 # Catch-all target: route all unknown targets to Sphinx using the new