diff --git a/sys/Makefile.dep b/sys/Makefile.dep
index 0f738e5ffe..34f0b3ca23 100644
--- a/sys/Makefile.dep
+++ b/sys/Makefile.dep
@@ -817,6 +817,10 @@ ifneq (,$(filter luid,$(USEMODULE)))
   FEATURES_OPTIONAL += periph_cpuid
 endif
 
+ifneq (,$(filter nanocoap_sock,$(USEMODULE)))
+  USEMODULE += sock_udp
+endif
+
 ifneq (,$(filter nanocoap_%,$(USEMODULE)))
   USEMODULE += nanocoap
 endif