diff --git a/examples/run_test.sh b/examples/run_test.sh
index e522747d..e585f3ad 100755
--- a/examples/run_test.sh
+++ b/examples/run_test.sh
@@ -1,10 +1,12 @@
 #!/usr/bin/env bash
-
+echo sse_server 1>&2
 PORT=8082
 
 ./sse_server.exe -p $PORT &
+PID=$!
+
 sleep 0.1
 ./sse_client.exe -p $PORT --alarm=1 /count | tr -d '\r' || true
 
-kill %1
+kill $PID
 echo "success"
diff --git a/src/bin/http_of_dir.ml b/src/bin/http_of_dir.ml
index b7aa3108..d2cf3481 100644
--- a/src/bin/http_of_dir.ml
+++ b/src/bin/http_of_dir.ml
@@ -115,7 +115,6 @@ let date_of_time (f:float) : string =
 let serve ~config (dir:string) : _ result =
   let server =
     S.create ~max_connections:config.j
-      ~max_keep_alive:config.max_keep_alive
       ~addr:config.addr ~port:config.port () in
   Printf.printf "serve directory %s on http://%(%s%):%d\n%!"
     dir (if S.is_ipv6 server then "[%s]" else "%s") config.addr config.port;
diff --git a/tests/download_chunked.sh b/tests/download_chunked.sh
index 6d8cbde6..0072f711 100755
--- a/tests/download_chunked.sh
+++ b/tests/download_chunked.sh
@@ -1,13 +1,14 @@
 #!/usr/bin/env sh
+echo download_chunked 1>&2
 
 SERVER=$1
 PORT=8084
 "$SERVER" . -p $PORT &
-
+PID=$!
 sleep 0.1
 
 curl -N "http://localhost:${PORT}/foo_50" -o data2 \
   -H 'Tranfer-encoding: chunked'
 
-kill %1
+kill $PID
 wc data2
diff --git a/tests/echo1.sh b/tests/echo1.sh
index 5cad7b60..aee93450 100755
--- a/tests/echo1.sh
+++ b/tests/echo1.sh
@@ -1,9 +1,11 @@
 #!/usr/bin/env sh
+echo echo1 1>&2
 
 ECHO=$1
 PORT=8085
 
 "$ECHO" -p $PORT &
+PID=$!
 sleep 0.1
 curl -N "http://localhost:${PORT}/echo/?a=b&c=d" -H user-agent:test
-kill %1
+kill $PID
diff --git a/tests/sse_count.sh b/tests/sse_count.sh
index 6010ed37..473f5116 100755
--- a/tests/sse_count.sh
+++ b/tests/sse_count.sh
@@ -1,10 +1,12 @@
 #!/usr/bin/env sh
+echo see_count 1>&2
 
 SSE_SERVER=$1
 PORT=8086
 
 "$SSE_SERVER" -p $PORT &
+PID=$!
 sleep 0.1
 
 curl -N "http://localhost:${PORT}/count/10" -H user-agent:test
-kill %1
+kill $PID
diff --git a/tests/upload_chunked.sh b/tests/upload_chunked.sh
index ca64ac8a..65b192a5 100755
--- a/tests/upload_chunked.sh
+++ b/tests/upload_chunked.sh
@@ -1,4 +1,5 @@
 #!/usr/bin/env sh
+echo upload_chunked 1>&2
 
 rm data
 
@@ -6,10 +7,11 @@ SERVER=$1
 PORT=8087
 
 "$SERVER" . -p $PORT --upload --max-upload 100000000000 &
+PID=$!
 
 sleep 0.1
 
 cat foo_50 | curl -N -X PUT http://localhost:$PORT/data --data-binary @- -H 'Transfer-Encoding: chunked'
 
-kill %1
+kill $PID
 wc data