diff --git a/docs/en/javascript.md b/docs/en/javascript.md
index e47811bc..105be323 100644
--- a/docs/en/javascript.md
+++ b/docs/en/javascript.md
@@ -20,7 +20,7 @@ An example of a web page, working with `roslib.js`:
 			alert('Connected');
 		});
 		
-		// Declare get_telemetry service
+		// Declare get_telemetry service client
 		var getTelemetry = new ROSLIB.Service({ ros: ros, name : '/get_telemetry', serviceType : 'clover/GetTelemetry' });
 
 		// Call get_telemetry
diff --git a/docs/ru/javascript.md b/docs/ru/javascript.md
index 326ad2e6..26b80a9a 100644
--- a/docs/ru/javascript.md
+++ b/docs/ru/javascript.md
@@ -20,7 +20,7 @@
 			alert('Connected');
 		});
 		
-		// Declare get_telemetry service
+		// Declare get_telemetry service client
 		var getTelemetry = new ROSLIB.Service({ ros: ros, name : '/get_telemetry', serviceType : 'clover/GetTelemetry' });
 
 		// Call get_telemetry