diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index 724d62791..d49f3f5be 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -559,6 +559,8 @@ has_mem_err() {
 # Wait for process $2 named $3 to be listening on port $1. Print error to $4.
 if type lsof >/dev/null 2>/dev/null; then
     wait_app_start() {
+        newline='
+'
         START_TIME=$(date +%s)
         if [ "$DTLS" -eq 1 ]; then
             proto=UDP
@@ -566,7 +568,15 @@ if type lsof >/dev/null 2>/dev/null; then
             proto=TCP
         fi
         # Make a tight loop, server normally takes less than 1s to start.
-        while ! lsof -a -n -b -i "$proto:$1" -p "$2" >/dev/null 2>/dev/null; do
+        while true; do
+              SERVER_PIDS=$(lsof -a -n -b -i "$proto:$1" -F p)
+              # When we use a proxy, it will be listening on the same port we
+              # are checking for as well as the server and lsof will list both.
+              # If multiple PIDs are returned, each one will be on a separate
+              # line, each prepended with 'p'.
+             case ${newline}${SERVER_PIDS}${newline} in
+                  *${newline}p${2}${newline}*) break;;
+              esac
               if [ $(( $(date +%s) - $START_TIME )) -gt $DOG_DELAY ]; then
                   echo "$3 START TIMEOUT"
                   echo "$3 START TIMEOUT" >> $4