diff --git a/prototype/tango-prototype/Makefile b/prototype/tango-prototype/Makefile
index c3bdbe5..e9951ac 100644
--- a/prototype/tango-prototype/Makefile
+++ b/prototype/tango-prototype/Makefile
@@ -24,3 +24,16 @@ eunit:
 pulse: compile
 	env USE_PULSE=1 $(REBAR_BIN) skip_deps=true clean compile
 	env USE_PULSE=1 $(REBAR_BIN) skip_deps=true -D PULSE eunit
+
+APPS = kernel stdlib sasl erts ssl tools os_mon runtime_tools crypto inets \
+        xmerl webtool snmp public_key mnesia eunit syntax_tools compiler
+PLT = $(HOME)/.dbms_dialyzer_plt
+
+build_plt: deps compile
+	dialyzer --build_plt --output_plt $(PLT) --apps $(APPS) deps/*/ebin
+
+dialyzer: deps compile
+	dialyzer -Wno_return --plt $(PLT) ebin
+
+clean_plt:
+	rm $(PLT)