diff --git a/sdrbase/gui/glscopegui.cpp b/sdrbase/gui/glscopegui.cpp
index f025055a7..fa4662e93 100644
--- a/sdrbase/gui/glscopegui.cpp
+++ b/sdrbase/gui/glscopegui.cpp
@@ -800,7 +800,6 @@ void GLScopeGUI::on_memIndex_valueChanged(int value)
 		// Set value
 		m_glScope->setMemHistoryShift(value);
 		ui->sampleRateText->setText(tr("%1\nkS/s").arg(m_glScope->getSampleRate() / 1000.0f, 0, 'f', 2));
-		emit traceMemoryChanged(value);
 	}
 }
 
diff --git a/sdrbase/gui/glscopegui.h b/sdrbase/gui/glscopegui.h
index eefb2d7ea..6e21fc295 100644
--- a/sdrbase/gui/glscopegui.h
+++ b/sdrbase/gui/glscopegui.h
@@ -30,9 +30,6 @@ public:
 
 	bool handleMessage(Message* message);
 
-signals:
-	void traceMemoryChanged(int);
-
 private:
 	Ui::GLScopeGUI* ui;