diff --git a/debian/rules b/debian/rules
index ff8c68c69cb..1f88b3f4847 100755
--- a/debian/rules
+++ b/debian/rules
@@ -83,7 +83,7 @@ build-stamp: configure
 
 ifeq ($(findstring nocheck,$(DEB_BUILD_OPTIONS)),)
 	if [ ! -f testsuite-stamp ] ; then \
-	  cd $(builddir)/mysql-test && ./mtr --force --parallel=$(NUMJOBS) --skip-rpl --suite=main; \
+	  cd $(builddir)/mysql-test && ./mtr --force --mem --parallel=$(NUMJOBS) --skip-rpl --suite=main; \
 	fi
 endif