qns: use certificate generated by interop runner
diff --git a/Dockerfile b/Dockerfile
index 3606da2..f69cf79 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -37,9 +37,6 @@
 
 WORKDIR /quiche
 
-# copy binaries and sample certificate for server
-COPY examples/cert.crt examples/cert.key examples/
-
 COPY --from=build \
      /build/tools/apps/target/debug/quiche-client \
      /build/tools/apps/target/debug/quiche-server \
diff --git a/tools/qns/run_endpoint.sh b/tools/qns/run_endpoint.sh
index 4f044ac..3c7c3e3 100755
--- a/tools/qns/run_endpoint.sh
+++ b/tools/qns/run_endpoint.sh
@@ -15,7 +15,7 @@
 QUICHE_CLIENT=quiche-client
 QUICHE_SERVER=quiche-server
 QUICHE_CLIENT_OPT="--no-verify --dump-responses ${DOWNLOAD_DIR}"
-QUICHE_SERVER_OPT_COMMON="--cert examples/cert.crt --key examples/cert.key"
+QUICHE_SERVER_OPT_COMMON="--cert /certs/cert.pem --key /certs/priv.key"
 QUICHE_SERVER_OPT="$QUICHE_SERVER_OPT_COMMON --no-retry "
 LOG_DIR=/logs
 LOG=$LOG_DIR/log.txt