diff --git a/src/Makefile b/src/Makefile
index 9a46e35..8e3d315 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -78,7 +78,7 @@ imports: $(HACKERBASE-DEPS)
 
 .PHONY: clean
 clean:
-	rm -f *.c *.link *.o *.import.scm ../hackerbase
+	rm -f *.c *.link *.o *.import.scm ../hackerbase ../gendoc
 
 .PHONY: install
 install: static