diff --git a/ios/liblinphone_flutter/Sources/liblinphone_flutter/LiblinphoneFlutterPlugin.swift b/ios/liblinphone_flutter/Sources/liblinphone_flutter/LiblinphoneFlutterPlugin.swift
index bc4db2c..d9eab69 100644
--- a/ios/liblinphone_flutter/Sources/liblinphone_flutter/LiblinphoneFlutterPlugin.swift
+++ b/ios/liblinphone_flutter/Sources/liblinphone_flutter/LiblinphoneFlutterPlugin.swift
@@ -179,7 +179,7 @@ public class LiblinphoneFlutterPlugin: NSObject, FlutterPlugin {
             result(true)
 
         case "getMicGain":
-            result(String(linphoneBridge.getMicGain()))
+            result(linphoneBridge.getMicGain())
 
         case "setPlaybackGain":
             guard let args = call.arguments as? [String: Any],