diff --git a/lfs/ntp b/lfs/ntp
index c8f69039d..ca46e5163 100644
--- a/lfs/ntp
+++ b/lfs/ntp
@@ -70,6 +70,7 @@ $(subst %,%_MD5,$(objects)) :
 $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 	@$(PREBUILD)
 	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar zxf $(DIR_DL)/$(DL_FILE)
+	$(UPDATE_AUTOMAKE)
 	cd $(DIR_APP) && \
 		./configure \
 			--prefix=/usr \