diff --git a/bin/xbps-rindex/Makefile b/bin/xbps-rindex/Makefile
index 2f17c90a..6dc200fb 100644
--- a/bin/xbps-rindex/Makefile
+++ b/bin/xbps-rindex/Makefile
@@ -5,3 +5,5 @@ BIN =	xbps-rindex
 OBJS =	main.o index-add.o index-clean.o remove-obsoletes.o repoflush.o sign.o
 
 include $(TOPDIR)/mk/prog.mk
+
+LDFLAGS += -lcrypto