--- a/Makefile.am
+++ b/Makefile.am
@@ -27,8 +27,7 @@ AM_MAKEFLAGS = --no-print-directory
 pkginclude_HEADERS = version.h
 
 # Add doc back when we have some real content.
-SUBDIRS = config m4 lib libelf libebl libdwelf libdwfl libdw libcpu libasm \
-	  backends src po tests
+SUBDIRS = config m4 lib libelf libebl libdwelf libdwfl libdw libasm
 
 EXTRA_DIST = elfutils.spec GPG-KEY NOTES CONTRIBUTING \
 	     COPYING COPYING-GPLV2 COPYING-LGPLV3
