diff --git a/makefile b/makefile
index 0873db7..9f3679d 100644
--- a/makefile
+++ b/makefile
@@ -1,4 +1,4 @@
-SUBDIRS := hi-head/.
+SUBDIRS := $(wildcard */.)
 TARGETS := full all tars tarlist  # whatever else, but must not contain '/'
 
 # foo/.all bar/.all foo/.clean bar/.clean