diff --git a/makefiles/dependency_resolution.inc.mk b/makefiles/dependency_resolution.inc.mk
index 827a1e17a6..7b15ea2ef1 100644
--- a/makefiles/dependency_resolution.inc.mk
+++ b/makefiles/dependency_resolution.inc.mk
@@ -38,4 +38,12 @@ else
   # Sort and de-duplicate used modules and default modules for readability
   USEMODULE := $(sort $(USEMODULE))
   DEFAULT_MODULE := $(sort $(DEFAULT_MODULE))
+
+  # Warn about used deprecated modules
+  include $(RIOTMAKE)/deprecated_modules.inc.mk
+  DEPRECATED_MODULES_USED := $(sort $(filter $(DEPRECATED_MODULES),$(USEMODULE)))
+  ifneq (,$(DEPRECATED_MODULES_USED))
+    $(shell $(COLOR_ECHO) "$(COLOR_RED)Deprecated modules are in use:$(COLOR_RESET)"\
+                          "$(DEPRECATED_MODULES_USED)" 1>&2)
+  endif
 endif
diff --git a/makefiles/deprecated_modules.inc.mk b/makefiles/deprecated_modules.inc.mk
new file mode 100644
index 0000000000..05d49d2083
--- /dev/null
+++ b/makefiles/deprecated_modules.inc.mk
@@ -0,0 +1,3 @@
+# Add deprecated modules here
+# Keep this list ALPHABETICALLY SORTED!!!!111elven
+DEPRECATED_MODULES += event_thread_lowest