diff --git a/mkfile b/mkfile
index 547971a..2bca3b1 100755
--- a/mkfile
+++ b/mkfile
@@ -7,7 +7,7 @@
 #   mk httpgw     # build only httpgw
 #   mk all        # build everything (default)
 
-all:V: core 9p httpgw webui data scripts
+all:V: core 9p acme httpgw webui data scripts
 
 core:V:
 	echo === Building ollie-core ===
@@ -17,6 +17,10 @@ core:V:
 	echo === Building ollie-9p ===
 	cd 9p && mk
 
+acme:V:
+	echo === Building ollie-acme ===
+	cd acme && mk
+
 httpgw:V:
 	echo === Building ollie-httpgw ===
 	cd httpgw && mk