diff --git a/common/rfb/ServerCore.cxx b/common/rfb/ServerCore.cxx
index 97aa875..0921665 100644
--- a/common/rfb/ServerCore.cxx
+++ b/common/rfb/ServerCore.cxx
@@ -117,10 +117,10 @@ rfb::BoolParameter rfb::Server::selfBench
 ("SelfBench",
  "Run self-benchmarks and exit.",
  false);
-rfb::BoolParameter rfb::Server::benchmark (
+rfb::StringParameter rfb::Server::benchmark (
     "Benchmark",
     "Run extended benchmarks and exit.",
-    false);
+    "video.mp4");
 rfb::IntParameter rfb::Server::dynamicQualityMin
 ("DynamicQualityMin",
  "The minimum dynamic JPEG quality, 0 = low, 9 = high",
diff --git a/common/rfb/ServerCore.h b/common/rfb/ServerCore.h
index aeae07f..a64fc21 100644
--- a/common/rfb/ServerCore.h
+++ b/common/rfb/ServerCore.h
@@ -88,7 +88,7 @@ namespace rfb {
         static BoolParameter detectHorizontal;
         static BoolParameter ignoreClientSettingsKasm;
         static BoolParameter selfBench;
-        static BoolParameter benchmark;
+        static StringParameter benchmark;
         static PresetParameter preferBandwidth;
         static IntParameter webpEncodingTime;
     };