diff --git a/radiant/ui/materials/MapExpressionEntry.h b/radiant/ui/materials/MapExpressionEntry.h
index 2f80604ee6..7004b5c809 100644
--- a/radiant/ui/materials/MapExpressionEntry.h
+++ b/radiant/ui/materials/MapExpressionEntry.h
@@ -39,6 +39,11 @@ class MapExpressionEntry :
         GetSizer()->Add(_browseButton, 0, wxALIGN_CENTER_VERTICAL, 0);
     }
 
+    wxTextCtrl* GetTextCtrl()
+    {
+        return _textEntry;
+    }
+
     wxString GetValue()
     {
         return _textEntry->GetValue();
diff --git a/radiant/ui/materials/MaterialEditor.cpp b/radiant/ui/materials/MaterialEditor.cpp
index ea2d67f170..facddbc330 100644
--- a/radiant/ui/materials/MaterialEditor.cpp
+++ b/radiant/ui/materials/MaterialEditor.cpp
@@ -250,6 +250,7 @@ void MaterialEditor::setupMaterialProperties()
 
     // Place map expression controls where needed
     convertTextCtrlToMapExpressionEntry("MaterialStageImageMap");
+    convertTextCtrlToMapExpressionEntry("MaterialLightFalloffMap");
 
     auto* typeDropdown = getControl<wxChoice>("MaterialType");
 
@@ -327,7 +328,8 @@ void MaterialEditor::setupMaterialProperties()
         _material->setLightFalloffCubeMapType(shaders::getMapTypeForString(lightFallOffCubeMapType->GetStringSelection().ToStdString()));
     });
 
-    _materialBindings.emplace(std::make_shared<ExpressionBinding<MaterialPtr>>(getControl<wxTextCtrl>("MaterialLightFalloffMap"),
+    auto lightFalloffMap = getControl<MapExpressionEntry>("MaterialLightFalloffMap");
+    _materialBindings.emplace(std::make_shared<ExpressionBinding<MaterialPtr>>(lightFalloffMap->GetTextCtrl(),
         [](const MaterialPtr& material) 
         { 
             auto expr = material->getLightFalloffExpression();
@@ -704,6 +706,21 @@ void MaterialEditor::createSpinCtrlDoubleBinding(const std::string& ctrlName,
 
 void MaterialEditor::setupMaterialStageProperties()
 {
+    auto stageImageMap = getControl<MapExpressionEntry>("MaterialStageImageMap");
+    _stageBindings.emplace(std::make_shared<ExpressionBinding<IShaderLayer::Ptr>>(stageImageMap->GetTextCtrl(),
+        [](const IShaderLayer::Ptr& stage)
+        {
+            auto expr = stage->getMapExpression();
+            return expr ? expr->getExpressionString() : std::string();
+        },
+        [this](const IEditableShaderLayer::Ptr& stage, const std::string& value)
+        {
+            if (_stageUpdateInProgress) return;
+            stage->setMapExpressionFromString(value);
+        },
+        [this]() { onMaterialChanged(); },
+        std::bind(&MaterialEditor::getEditableStageForSelection, this)));
+
     setupStageFlag("MaterialStageFlagMaskRed", IShaderLayer::FLAG_MASK_RED);
     setupStageFlag("MaterialStageFlagMaskGreen", IShaderLayer::FLAG_MASK_GREEN);
     setupStageFlag("MaterialStageFlagMaskBlue", IShaderLayer::FLAG_MASK_BLUE);
@@ -1600,20 +1617,8 @@ void MaterialEditor::updateStageControls()
     if (selectedStage)
     {
         selectedStage->evaluateExpressions(0); // initialise the values of this stage
-
-        auto mapExpr = selectedStage->getMapExpression();
+        
         auto imageMap = getControl<MapExpressionEntry>("MaterialStageImageMap");
-        imageMap->SetValue(mapExpr ? mapExpr->getExpressionString() : "");
-
-        imageMap->Bind(wxEVT_TEXT, [imageMap, this](wxCommandEvent&)
-        {
-            if (_stageUpdateInProgress) return;
-
-            auto stage = getEditableStageForSelection();
-            stage->setMapExpressionFromString(imageMap->GetValue().ToStdString());
-            onMaterialChanged();
-        });
-
         auto videoMapLoop = getControl<wxCheckBox>("MaterialStageVideoMapLoop");
         auto soundMapWave = getControl<wxCheckBox>("MaterialStageSoundMapWaveform");
 
@@ -1680,7 +1685,6 @@ void MaterialEditor::updateStageControls()
     else
     {
         getControl<wxRadioButton>("MaterialStageNoVertexColourFlag")->SetValue(true);
-        getControl<MapExpressionEntry>("MaterialStageImageMap")->SetValue("");
     }
 }