diff --git a/openwrt/package/libosip2/Config.in b/openwrt/package/libosip2/Config.in
index 107b4896f3..500dbb1c36 100644
--- a/openwrt/package/libosip2/Config.in
+++ b/openwrt/package/libosip2/Config.in
@@ -1,6 +1,7 @@
 config BR2_PACKAGE_LIBOSIP2
 	tristate "libosip2 - GNU oSIP library"
 	default m if CONFIG_DEVEL
+	select BR2_PACKAGE_LIBPTHREAD
 	help
 	  GNU oSIP library, a Session Initiation Protocol (SIP) implementation