diff --git a/conf.py b/conf.py
index ad35596d7a..90f58979d9 100644
--- a/conf.py
+++ b/conf.py
@@ -213,6 +213,7 @@ exclude_patterns = ["**/build*",
                     "ports/nrf/peripherals",
                     "ports/nrf/usb",
                     "ports/raspberrypi/sdk",
+                    "ports/raspberrypi/lib",
                     "ports/stm/st_driver",
                     "ports/stm/packages",
                     "ports/stm/peripherals",