diff --git a/libs/nixio/Makefile b/libs/nixio/Makefile
index 42d3666524..fd2e06afc8 100644
--- a/libs/nixio/Makefile
+++ b/libs/nixio/Makefile
@@ -32,7 +32,7 @@ ifeq ($(NIXIO_TLS),axtls)
 endif
 
 ifeq ($(NIXIO_TLS),openssl)
-	NIXIO_LDFLAGS += -lssl
+	NIXIO_LDFLAGS += -lssl -lcrypto
 endif
 
 ifeq ($(NIXIO_TLS),cyassl)