diff --git a/doc/Makefile b/doc/Makefile
index 2f513c5fd69d..f01f8295208f 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -13,7 +13,7 @@ all: $(JSONRPC)
 	cp -f theme/logo* book/
 	./generate_seminar_ics.py --ics
 	$(MAKE) -C ../ rustdoc
-	cp -r ../target/doc/* book/development/
+	cp -r ../target/doc/* book/dev/
 	./remove_chapter_nav_js.py
 
 $(DARKFID_JSONRPC):