diff --git a/docgen/prj.conf b/docgen/prj.conf
index 930445c..6ffe361 100644
--- a/docgen/prj.conf
+++ b/docgen/prj.conf
@@ -3,3 +3,6 @@
 
 CONFIG_RUST=y
 CONFIG_RUST_ALLOC=y
+CONFIG_GPIO=y
+CONFIG_PRINTK=y
+CONFIG_POLL=y