diff --git a/INSTALL b/INSTALL
index b75d5b2b5..bccdbc3fb 100644
--- a/INSTALL
+++ b/INSTALL
@@ -33,8 +33,6 @@ However it requires that cmake be installed on your system.
 
 To add the Python3 bindings, use pip3 install from PyPI as follows:
    > pip3 install eccodes
-   or
-   > pip3 install --install-option="--prefix=/path/to/where/you/install/eccodes" eccodes
 
 You can also pass options to the cmake command above. Some typical examples are:
 
diff --git a/README.md b/README.md
index f63d65384..6859a1f1a 100644
--- a/README.md
+++ b/README.md
@@ -60,11 +60,6 @@ To add the Python3 bindings, use pip3 install from PyPI as follows:
    ```
    pip3 install eccodes
    ```
-   or
-   ```
-   pip3 install --install-option="--prefix=/path/to/where/you/install/eccodes" eccodes
-   ```
-
 
 For more details, please see:
 https://confluence.ecmwf.int/display/ECC/ecCodes+installation