diff --git a/lfs/libnet b/lfs/libnet
index a9efd99b3..2b206adbd 100644
--- a/lfs/libnet
+++ b/lfs/libnet
@@ -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
 	cd $(DIR_APP) && make $(MAKETUNING)
 	cd $(DIR_APP) && make install