diff --git a/prism/Makefile b/prism/Makefile
index 25d7410f..d4bc8786 100644
--- a/prism/Makefile
+++ b/prism/Makefile
@@ -293,7 +293,7 @@ ifeq ($(OSTYPE),darwin)
 	BIN_TARGETS=$(BIN_PRISM) $(BIN_XPRISM)
 endif
 
-.PHONY: clean javadoc
+.PHONY: clean javadoc tests
 
 default: all
 
@@ -357,6 +357,9 @@ make_dirs:
 	  for lib in `ls *$(LIBSUFFIX)`; do ln -fs $$lib `echo $$lib | sed s/$(LIBSUFFIX)/.jnilib/`; done;); \
 	fi
 
+tests:
+	cd ~/prism-tests && $(MAKE) clean && $(MAKE) PRISM_EXEC=../bin/prism
+
 bin_scripts: $(BIN_TARGETS)
 	@./install.sh silent