diff --git a/src/libcec/implementations/SLCommandHandler.cpp b/src/libcec/implementations/SLCommandHandler.cpp
index fd223bab..1c71df1f 100644
--- a/src/libcec/implementations/SLCommandHandler.cpp
+++ b/src/libcec/implementations/SLCommandHandler.cpp
@@ -56,6 +56,7 @@ using namespace P8PLATFORM;
 #define SL_COMMAND_CONNECT_REQUEST      0x04
 #define SL_COMMAND_SET_DEVICE_MODE      0x05
 #define SL_COMMAND_REQUEST_POWER_STATUS 0xa0
+#define SL_COMMAND_UNKNOWN              0x0b
 
 #define LIB_CEC     m_busDevice->GetProcessor()->GetLib()
 #define ToString(p) LIB_CEC->ToString(p)
@@ -132,6 +133,10 @@ int CSLCommandHandler::HandleVendorCommand(const cec_command &command)
     HandleVendorCommandPowerOnStatus(command);
     return COMMAND_HANDLED;
   }
+  else if (command.parameters.size == 1 &&
+      command.parameters[0] == SL_COMMAND_UNKNOWN) {
+    return COMMAND_HANDLED;
+  }
 
   return CCECCommandHandler::HandleVendorCommand(command);
 }