diff --git a/include-gpl/gui/glscopegui.h b/include-gpl/gui/glscopegui.h
index 7ee9085d0..aad967894 100644
--- a/include-gpl/gui/glscopegui.h
+++ b/include-gpl/gui/glscopegui.h
@@ -23,6 +23,7 @@ public:
 
 	void setBuddies(MessageQueue* messageQueue, ScopeVis* scopeVis, GLScope* glScope);
 
+	void setSampleRate(int sampleRate);
 	void resetToDefaults();
 	QByteArray serialize() const;
 	bool deserialize(const QByteArray& data);
diff --git a/sdrbase/gui/glscopegui.cpp b/sdrbase/gui/glscopegui.cpp
index cad26d6f6..43842089c 100644
--- a/sdrbase/gui/glscopegui.cpp
+++ b/sdrbase/gui/glscopegui.cpp
@@ -37,6 +37,12 @@ void GLScopeGUI::setBuddies(MessageQueue* messageQueue, ScopeVis* scopeVis, GLSc
 	applySettings();
 }
 
+void GLScopeGUI::setSampleRate(int sampleRate)
+{
+	m_sampleRate = sampleRate;
+	on_scope_traceSizeChanged(0);
+}
+
 void GLScopeGUI::resetToDefaults()
 {
 	m_displayData = GLScope::ModeIQ;