diff --git a/eeschema/sim/sim_plot_frame.cpp b/eeschema/sim/sim_plot_frame.cpp
index 857ecce5be..70491a4206 100644
--- a/eeschema/sim/sim_plot_frame.cpp
+++ b/eeschema/sim/sim_plot_frame.cpp
@@ -572,13 +572,18 @@ void SIM_PLOT_FRAME::AddTuner( SCH_SYMBOL* aSymbol )
     }
 }
 
-void SIM_PLOT_FRAME::UpdateTunerValue( SCH_SYMBOL* aSymbol, const wxString& aValue )
+void SIM_PLOT_FRAME::UpdateTunerValue( SCH_SYMBOL* aSymbol, int aId, const wxString& aValue )
 {
     for( auto& item : m_schematicFrame->GetScreen()->Items().OfType( SCH_SYMBOL_T ) )
     {
         if( item == aSymbol )
         {
-            aSymbol->SetValue( aValue );
+            SCH_FIELD* field = aSymbol->GetFieldById( aId );
+
+            if( !field )
+                break;
+
+            field->SetText( aValue );
 
             m_schematicFrame->UpdateItem( aSymbol, false, true );
             m_schematicFrame->OnModify();
diff --git a/eeschema/sim/sim_plot_frame.h b/eeschema/sim/sim_plot_frame.h
index 802195445f..de39b2bc1b 100644
--- a/eeschema/sim/sim_plot_frame.h
+++ b/eeschema/sim/sim_plot_frame.h
@@ -110,13 +110,14 @@ public:
     void RemoveTuner( TUNER_SLIDER* aTuner, bool aErase = true );
 
     /**
-     * Safely update the value of the associated symbol without dereferencing
+     * Safely update a field of the associated symbol without dereferencing
      * the symbol.
      *
      * @param aSymbol pointer to the symbol needing updating
-     * @param aValue new value of the symbol
+     * @param aId id of the symbol field
+     * @param aValue new value of the symbol field
      */
-    void UpdateTunerValue( SCH_SYMBOL* aSymbol, const wxString& aValue );
+    void UpdateTunerValue( SCH_SYMBOL* aSymbol, int aId, const wxString& aValue );
 
     /**
      * Return the currently opened plot panel (or NULL if there is none).
diff --git a/eeschema/widgets/tuner_slider.cpp b/eeschema/widgets/tuner_slider.cpp
index 0a8310d7e3..3c4d68320a 100644
--- a/eeschema/widgets/tuner_slider.cpp
+++ b/eeschema/widgets/tuner_slider.cpp
@@ -31,15 +31,23 @@
 #include <template_fieldnames.h>
 #include <sim/netlist_exporter_pspice_sim.h>
 
-TUNER_SLIDER::TUNER_SLIDER( SIM_PLOT_FRAME* aFrame, wxWindow* aParent, SCH_SYMBOL* aSymbol )
-    : TUNER_SLIDER_BASE( aParent ), m_symbol( aSymbol ),
-    m_min( 0.0 ), m_max( 0.0 ), m_value( 0.0 ), m_frame ( aFrame )
+TUNER_SLIDER::TUNER_SLIDER( SIM_PLOT_FRAME* aFrame, wxWindow* aParent, SCH_SYMBOL* aSymbol ) :
+    TUNER_SLIDER_BASE( aParent ),
+    m_symbol( aSymbol ),
+    m_min( 0.0 ),
+    m_max( 0.0 ),
+    m_changed( false ),
+    m_frame ( aFrame )
 {
     const wxString compName = aSymbol->GetField( REFERENCE_FIELD )->GetText();
     m_name->SetLabel( compName );
-    m_value = SPICE_VALUE( aSymbol->GetField( VALUE_FIELD )->GetText() );
 
-    m_changed = false;
+    if( aSymbol->FindField( NETLIST_EXPORTER_PSPICE::GetSpiceFieldName( SF_MODEL ) ) )
+        m_fieldId = aSymbol->FindField( NETLIST_EXPORTER_PSPICE::GetSpiceFieldName( SF_MODEL ) )->GetId();
+    else
+        m_fieldId = aSymbol->GetField( VALUE_FIELD )->GetId();
+
+    m_value = SPICE_VALUE( aSymbol->GetFieldById( m_fieldId )->GetText() );
     m_spiceName = aFrame->GetExporter()->GetSpiceDevice( compName ).Lower();
 
     // Call Set*() methods to update fields and slider
@@ -185,7 +193,7 @@ void TUNER_SLIDER::onClose( wxCommandEvent& event )
 
 void TUNER_SLIDER::onSave( wxCommandEvent& event )
 {
-    m_frame->UpdateTunerValue( m_symbol, m_value.ToOrigString() );
+    m_frame->UpdateTunerValue( m_symbol, m_fieldId, m_value.ToOrigString() );
 }
 
 
diff --git a/eeschema/widgets/tuner_slider.h b/eeschema/widgets/tuner_slider.h
index 13b300d72e..04023a7d0d 100644
--- a/eeschema/widgets/tuner_slider.h
+++ b/eeschema/widgets/tuner_slider.h
@@ -103,6 +103,7 @@ private:
 
     SCH_SYMBOL* m_symbol;
 
+    int m_fieldId;
     SPICE_VALUE m_min, m_max, m_value;
     bool m_changed;