diff --git a/docs/src/get-started/installation.rst b/docs/src/get-started/installation.rst
index fc6e57cb0..84e05ef28 100644
--- a/docs/src/get-started/installation.rst
+++ b/docs/src/get-started/installation.rst
@@ -124,7 +124,7 @@ Building from source:
     pip install --upgrade pip
 
     # alternatively, the same thing in a single command
-    pip install git+https://github.com/luthaf/rascaline#subdirectory=python/rascaline-torch
+    pip install --extra-index-url https://download.pytorch.org/whl/cpu git+https://github.com/luthaf/rascaline#subdirectory=python/rascaline-torch
 
 
 For usage from C++