diff --git a/rtl_tcp_source/src/rtltcp_client.h b/rtl_tcp_source/src/rtltcp_client.h
index 81670eae..d251d807 100644
--- a/rtl_tcp_source/src/rtltcp_client.h
+++ b/rtl_tcp_source/src/rtltcp_client.h
@@ -173,7 +173,7 @@ public:
     }
 
     void setBiasTee(bool enabled) {
-        sendCommand(14, index);
+        sendCommand(14, enabled);
     }
 
 private: