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--- a/upmpd/ohvolume.cxx
+++ b/upmpd/ohvolume.cxx
@@ -41,6 +41,8 @@
 #include "upmpdutils.hxx"
 #include "renderctl.hxx"
 
+static const string millidbperstep("500");
+
 static const string sTpProduct("urn:av-openhome-org:service:Volume:1");
 static const string sIdProduct("urn:av-openhome-org:serviceId:Volume");
 
@@ -73,7 +75,7 @@
     st["VolumeLimit"] = "100";
     st["VolumeUnity"] = "100";
     st["VolumeSteps"] = "100";
-    st["VolumeMilliDbPerSteps"] = "500";
+    st["VolumeMilliDbPerSteps"] = millidbperstep;
     st["BalanceMax"] = "0";
     st["FadeMax"] = "0";
     int volume = m_ctl->getvolume_i();
@@ -110,7 +112,7 @@
     data.addarg("VolumeMax", "100");
     data.addarg("VolumeUnity", "100");
     data.addarg("VolumeSteps", "100");
-    data.addarg("VolumeMilliDbPerStep", "500");
+    data.addarg("VolumeMilliDbPerStep", millidbperstep);
     data.addarg("BalanceMax", "0");
     data.addarg("FadeMax", "0");
     return UPNP_E_SUCCESS;