diff --git a/ground/src/plugins/uavobjects/uavobject.cpp b/ground/src/plugins/uavobjects/uavobject.cpp
index d0658369d..bfc0dfa86 100644
--- a/ground/src/plugins/uavobjects/uavobject.cpp
+++ b/ground/src/plugins/uavobjects/uavobject.cpp
@@ -194,7 +194,7 @@ QList<UAVObjectField*> UAVObject::getFields()
  * Get a specific field
  * @returns The field or NULL if not found
  */
-UAVObjectField* UAVObject::getField(QString& name)
+UAVObjectField* UAVObject::getField(const QString& name)
 {
     QMutexLocker locker(mutex);
     // Look for field
diff --git a/ground/src/plugins/uavobjects/uavobject.h b/ground/src/plugins/uavobjects/uavobject.h
index d2d8fcdbb..e2a150eb0 100644
--- a/ground/src/plugins/uavobjects/uavobject.h
+++ b/ground/src/plugins/uavobjects/uavobject.h
@@ -106,7 +106,7 @@ public:
     QMutex* getMutex();
     qint32 getNumFields();
     QList<UAVObjectField*> getFields();
-    UAVObjectField* getField(QString& name);
+    UAVObjectField* getField(const QString& name);
     QString toString();
     QString toStringBrief();
     QString toStringData();