diff --git a/net/bird/Makefile b/net/bird/Makefile
index cd7472a..b5fcf95 100644
--- a/net/bird/Makefile
+++ b/net/bird/Makefile
@@ -20,6 +20,7 @@ include $(INCLUDE_DIR)/package.mk
 define Package/bird/Default
   TITLE:=The BIRD Internet Routing Daemon
   URL:=http://bird.network.cz/
+  DEPENDS:= +USE_EGLIBC:librt
 endef
 
 define Package/birdc/Default