diff --git a/community-mysql.spec b/community-mysql.spec
index 5e8066b..a099244 100644
--- a/community-mysql.spec
+++ b/community-mysql.spec
@@ -636,14 +636,14 @@ export MTR_BUILD_THREAD=$(( $(date +%s) % 2200 ))
   set -ex
   cd %{buildroot}%{_datadir}/mysql-test
 
-  export common_testsuite_arguments=" %{?with_debug:--debug-server} --parallel=auto --force --retry=2 --suite-timeout=900 --testcase-timeout=30 --mysqld=--binlog-format=mixed --max-test-fail=5 --report-unstable-tests --clean-vardir "
+  export common_testsuite_arguments=" %{?with_debug:--debug-server} --parallel=1 --force --retry=2 --suite-timeout=900 --testcase-timeout=30 --mysqld=--binlog-format=mixed --max-test-fail=5 --report-unstable-tests --clean-vardir "
 
   # If full testsuite has already been run on this version and we don't explicitly want the full testsuite to be run
   if [[ "%{last_tested_version}" == "%{version}" ]] && [[ %{force_run_testsuite} -eq 0 ]]
   then
     # in further rebuilds only run the basic "main" suite (~800 tests)
     echo "running only base testsuite"
-    perl ./mysql-test-run.pl $common_testsuite_arguments --suite=main --mem --skip-test-list=%{skiplist}
+    perl ./mysql-test-run.pl $common_testsuite_arguments --suite=main --skip-test-list=%{skiplist}
   fi
 
  # If either this version wasn't marked as tested yet or I explicitly want to run the testsuite, run everything we have (~4000 test)