diff --git a/Makefile b/Makefile
index 3cd0a13a7..8552cfdf4 100644
--- a/Makefile
+++ b/Makefile
@@ -162,16 +162,14 @@ count-lines:
 	@grep TODO `find src -name '*.py' |grep -v /build/` | wc --lines
 
 check-memory: build
-	touch memstats.out
+	rm -rf _test_memory
 	$(PP) \
 	 $(PYTHON) src/allmydata/test/check_memory.py upload
-	cat _test_memory/stats.out >>memstats.out
 	$(PP) \
 	 $(PYTHON) src/allmydata/test/check_memory.py upload-self
-	cat _test_memory/stats.out >>memstats.out
 	$(PP) \
 	 $(PYTHON) src/allmydata/test/check_memory.py upload-POST
-	cat _test_memory/stats.out >>memstats.out
+
 
 test-darcs-boringfile:
 	$(MAKE)