diff --git a/Makefile.am b/Makefile.am
index ddf97b6ff..05917a05c 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -82,7 +82,7 @@ dist-hook: gen-ChangeLog
 gen_start_date = 2011-12-01T06:00:00
 .PHONY: gen-ChangeLog
 gen-ChangeLog:
-	set -x; 							\
+	set -e; 							\
 	if test -d $(top_srcdir)/.git; then				\
 	  (cd $(top_srcdir) &&                      			\
 	    $(GITLOG_TO_CHANGELOG) --append-dot --tear-off		\