diff --git a/server/scripts/run-shard-tests.sh b/server/scripts/run-shard-tests.sh
index 688e3f2019e..f25b4fd978d 100755
--- a/server/scripts/run-shard-tests.sh
+++ b/server/scripts/run-shard-tests.sh
@@ -50,7 +50,7 @@ run_gotestsum() {
   RUN_IDX=$((RUN_IDX + 1))
 
   GOTESTSUM_JUNITFILE="$junitfile" GOTESTSUM_JSONFILE="$jsonfile" \
-    "$GOBIN/gotestsum" --rerun-fails=3 --packages="$1" \
+    "$GOBIN/gotestsum" --format "${GOTESTSUM_FORMAT:-testname}" --rerun-fails=3 --packages="$1" \
     -- $GOFLAGS_BASE $RACE_FLAG $coverage_flag $run_flag \
     || FAILURES=$((FAILURES + 1))
 }