diff --git a/lib/Makefile.am b/lib/Makefile.am
index 8bfd62c6c9c84e7cc0d210583c50d64feac18b2d..01ca8f4f47d10de6091b6e13a2ad9dd35be7245c 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -19,6 +19,7 @@ _autoconf.py: Makefile
 	  echo "OS_SEARCH_PATH = [$(OS_SEARCH_PATH)]"; \
 	  echo "XEN_KERNEL = '$(XEN_KERNEL)'"; \
 	  echo "XEN_INITRD = '$(XEN_INITRD)'"; \
+	  echo "FILE_STORAGE_DIR = '$(FILE_STORAGE_DIR)'"; \
 	} > $@
 
 pre-check: all