1 files changed, 2 insertions, 2 deletions
diff --git a/ui/qt/capture_filter_edit.h b/ui/qt/capture_filter_edit.h
index af4f2ecc62..58e26949bd 100644
--- a/ui/qt/capture_filter_edit.h
+++ b/ui/qt/capture_filter_edit.h
@@ -59,11 +59,11 @@ private:
     CaptureFilterSyntaxWorker *syntax_worker_;
 
 signals:
-    void pushFilterSyntaxStatus(QString&);
+    void pushFilterSyntaxStatus(const QString&);
     void popFilterSyntaxStatus();
     void captureFilterSyntaxChanged(bool valid);
     void startCapture();
-    void addBookmark(QString filter);
+    void addBookmark(const QString filter);
 
 };