diff --git a/include/Effect.h b/include/Effect.h
index 8b2ff81f0..7180e8275 100644
--- a/include/Effect.h
+++ b/include/Effect.h
@@ -208,6 +208,8 @@ protected:
 	}
 	void reinitSRC();
 
+	virtual void onEnabledChanged() {}
+
 
 private:
 	EffectChain * m_parent;
diff --git a/plugins/DualFilter/DualFilter.cpp b/plugins/DualFilter/DualFilter.cpp
index 4e66db988..40afa342a 100644
--- a/plugins/DualFilter/DualFilter.cpp
+++ b/plugins/DualFilter/DualFilter.cpp
@@ -218,6 +218,11 @@ bool DualFilterEffect::processAudioBuffer( sampleFrame* buf, const fpp_t frames
 	return isRunning();
 }
 
+void DualFilterEffect::onEnabledChanged()
+{
+	m_filter1->clearHistory();
+	m_filter2->clearHistory();
+}
 
 
 
diff --git a/plugins/DualFilter/DualFilter.h b/plugins/DualFilter/DualFilter.h
index c179edbcc..29161039a 100644
--- a/plugins/DualFilter/DualFilter.h
+++ b/plugins/DualFilter/DualFilter.h
@@ -47,6 +47,8 @@ public:
 		return &m_dfControls;
 	}
 
+protected:
+	void onEnabledChanged() override;
 
 private:
 	DualFilterControls m_dfControls;
diff --git a/src/core/Effect.cpp b/src/core/Effect.cpp
index 7ede64e6b..aa6e56cd2 100644
--- a/src/core/Effect.cpp
+++ b/src/core/Effect.cpp
@@ -61,6 +61,10 @@ Effect::Effect( const Plugin::Descriptor * _desc,
 	{
 		m_autoQuitDisabled = true;
 	}
+
+	// Call the virtual method onEnabledChanged so that effects can react to changes,
+	// e.g. by resetting state.
+	connect(&m_enabledModel, &BoolModel::dataChanged, [this] { onEnabledChanged(); });
 }