diff --git a/services/console-proxy/server/src/main/java/com/cloud/consoleproxy/vnc/NoVncClient.java b/services/console-proxy/server/src/main/java/com/cloud/consoleproxy/vnc/NoVncClient.java
index 991a56415fa..c8318de1e35 100644
--- a/services/console-proxy/server/src/main/java/com/cloud/consoleproxy/vnc/NoVncClient.java
+++ b/services/console-proxy/server/src/main/java/com/cloud/consoleproxy/vnc/NoVncClient.java
@@ -155,7 +155,8 @@ public class NoVncClient {
         }
 
         // Proxy that we support RFB 3.3 only
-        return RfbConstants.RFB_PROTOCOL_VERSION + "\n";
+        return String.format("%s%s\n", RfbConstants.RFB_PROTOCOL_VERSION_MAJOR,
+                RfbConstants.VNC_PROTOCOL_VERSION_MINOR_TUNNEL);
     }
 
     /**
diff --git a/services/console-proxy/server/src/main/java/com/cloud/consoleproxy/vnc/RfbConstants.java b/services/console-proxy/server/src/main/java/com/cloud/consoleproxy/vnc/RfbConstants.java
index 3e44ce7d1a6..85442a4d6a5 100644
--- a/services/console-proxy/server/src/main/java/com/cloud/consoleproxy/vnc/RfbConstants.java
+++ b/services/console-proxy/server/src/main/java/com/cloud/consoleproxy/vnc/RfbConstants.java
@@ -21,8 +21,8 @@ import java.nio.charset.Charset;
 public interface RfbConstants {
 
     public static final String RFB_PROTOCOL_VERSION_MAJOR = "RFB 003.";
-    // public static final String VNC_PROTOCOL_VERSION_MINOR = "003";
     public static final String VNC_PROTOCOL_VERSION_MINOR = "008";
+    public static final String VNC_PROTOCOL_VERSION_MINOR_TUNNEL = "003";
     public static final String RFB_PROTOCOL_VERSION = RFB_PROTOCOL_VERSION_MAJOR + VNC_PROTOCOL_VERSION_MINOR;
 
     /**