diff --git a/sys/net/gnrc/Makefile.dep b/sys/net/gnrc/Makefile.dep
index 4426854df4..f61bb305cc 100644
--- a/sys/net/gnrc/Makefile.dep
+++ b/sys/net/gnrc/Makefile.dep
@@ -493,5 +493,6 @@ ifneq (,$(filter gnrc_lwmac,$(USEMODULE)))
   USEMODULE += gnrc_netif
   USEMODULE += gnrc_nettype_lwmac
   USEMODULE += gnrc_mac
+  USEMODULE += xtimer
   FEATURES_REQUIRED += periph_rtt
 endif