diff --git a/meta-networking/recipes-protocols/openl2tp/openl2tp_1.8.bb b/meta-networking/recipes-protocols/openl2tp/openl2tp_1.8.bb
index d66b7d2390..4e5b45891d 100644
--- a/meta-networking/recipes-protocols/openl2tp/openl2tp_1.8.bb
+++ b/meta-networking/recipes-protocols/openl2tp/openl2tp_1.8.bb
@@ -48,7 +48,7 @@ SYSTEMD_AUTO_ENABLE = "disable"
 
 DEPENDS += "libtirpc"
 CPPFLAGS += "-I${STAGING_INCDIR}/tirpc"
-CFLAGS += "-I${STAGING_INCDIR}/tirpc"
+CFLAGS += "-I${STAGING_INCDIR}/tirpc -std=gnu17"
 LDFLAGS += "-ltirpc"
 
 PARALLEL_MAKE = ""