diff --git a/tools/jenkins/run_performance.sh b/tools/jenkins/run_performance.sh
index 544e31dcbdb..f530fb46b86 100755
--- a/tools/jenkins/run_performance.sh
+++ b/tools/jenkins/run_performance.sh
@@ -37,4 +37,5 @@ BENCHMARKS_TO_RUN="bm_fullstack_unary_ping_pong bm_fullstack_streaming_ping_pong
 # Enter the gRPC repo root
 cd $(dirname $0)/../..
 
+tools/run_tests/start_port_server.py
 tools/profiling/microbenchmarks/bm_diff.py -d origin/$ghprbTargetBranch -b $BENCHMARKS_TO_RUN