diff --git a/Makefile b/Makefile
index 5b55b4c..ad84977 100644
--- a/Makefile
+++ b/Makefile
@@ -24,6 +24,6 @@ uninstall:
 	rm -f ${DESTDIR}${PREFIX}/share/licenses/${TARGET}/LICENSE
 	rmdir ${DESTDIR}${PREFIX}/share/licenses/${TARGET}
 
-test:
+test: | ${TARGET}
 	@echo -n "Does input \"3.68 120 30d\" gives 317.95? "
 	@test "${shell ./kwh-cost 3.68 120 30d}" = "317.95" && { echo -e "\e[32mYES\e[0m"; } || { echo -e "\e[31mNO\e[0m"; }
\ No newline at end of file