Update index.rst
diff --git a/docs/source/index.rst b/docs/source/index.rst
index 4bbe165..0d580bf 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -173,7 +173,7 @@
     export PDK_ROOT=<pdk-installation-path>
 
     # use volare to download the pdk
-    make pdk-with-volare
+    make pdk-with-volare -f $(OPENLANE_ROOT)/dependencies/tool_metadata.yml
 
 Running Full Chip Simulation
 ============================