diff --git a/run_tests.sh b/run_tests.sh
index 9a158e43f8..908056f2ca 100755
--- a/run_tests.sh
+++ b/run_tests.sh
@@ -90,9 +90,9 @@ function run_tests {
   fi
 
   if [ $serial -eq 1 ]; then
-      ${wrapper} testr run --subunit $testrargs | ${wrapper} subunit-2to1 | ${wrapper} tools/colorizer.py
+      ${wrapper} testr run --subunit $testrargs | ${wrapper} subunit-trace -n -f
   else
-      ${wrapper} testr run --parallel --subunit $testrargs | ${wrapper} subunit-2to1 | ${wrapper} tools/colorizer.py
+      ${wrapper} testr run --parallel --subunit $testrargs | ${wrapper} subunit-trace -n -f
   fi
 }