diff --git a/Makefile b/Makefile
index 59bd4f7..254f3c5 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 all:
-	./waf build
+	./waf build --targets jes
 
 .PHONY: clean
 clean:
@@ -7,5 +7,5 @@ clean:
 
 .PHONY: test
 test:
-	./waf build
+	./waf build --targets tests
 	./build/tests