diff --git a/pkg/umorse/Makefile.dep b/pkg/umorse/Makefile.dep
index 8871c3a908..350dc2afa4 100644
--- a/pkg/umorse/Makefile.dep
+++ b/pkg/umorse/Makefile.dep
@@ -1,3 +1 @@
-ifneq (,$(filter umorse,$(USEPKG)))
-  USEMODULE += posix_time
-endif
+USEMODULE += posix_time