diff --git a/am/Makefile.am b/am/Makefile.am
index a4bfbc415..f8fd41ae4 100644
--- a/am/Makefile.am
+++ b/am/Makefile.am
@@ -21,7 +21,7 @@
 
 AUTOMAKE_OPTIONS = gnu
 
-am_frags = pre-inst-guile
+am_frags = pre-inst-guile maintainer-dirs
 
 EXTRA_DIST = $(am_frags)