diff --git a/addons/xterm-addon-webgl/src/GlyphRenderer.ts b/addons/xterm-addon-webgl/src/GlyphRenderer.ts
index f8eed3ae..8be4c011 100644
--- a/addons/xterm-addon-webgl/src/GlyphRenderer.ts
+++ b/addons/xterm-addon-webgl/src/GlyphRenderer.ts
@@ -213,14 +213,14 @@ export class GlyphRenderer {
     // a_cellpos only changes on resize
   }
 
-  public updateSelection(model: IRenderModel, columnSelectMode: boolean): void {
+  public updateSelection(model: IRenderModel): void {
     const terminal = this._terminal;
 
     this._vertices.selectionAttributes = slice(this._vertices.attributes, 0);
 
     const bg = (this._colors.selectionOpaque.rgba >>> 8) | Attributes.CM_RGB;
 
-    if (columnSelectMode) {
+    if (model.selection.columnSelectMode) {
       const startCol = model.selection.startCol;
       const width = model.selection.endCol - startCol;
       const height = model.selection.viewportCappedEndRow - model.selection.viewportCappedStartRow + 1;
diff --git a/addons/xterm-addon-webgl/src/RectangleRenderer.ts b/addons/xterm-addon-webgl/src/RectangleRenderer.ts
index 2246cddd..2b216f0d 100644
--- a/addons/xterm-addon-webgl/src/RectangleRenderer.ts
+++ b/addons/xterm-addon-webgl/src/RectangleRenderer.ts
@@ -171,7 +171,7 @@ export class RectangleRenderer {
     );
   }
 
-  public updateSelection(model: ISelectionRenderModel, columnSelectMode: boolean): void {
+  public updateSelection(model: ISelectionRenderModel): void {
     const terminal = this._terminal;
 
     if (!model.hasSelection) {
@@ -179,7 +179,7 @@ export class RectangleRenderer {
       return;
     }
 
-    if (columnSelectMode) {
+    if (model.columnSelectMode) {
       const startCol = model.startCol;
       const width = model.endCol - startCol;
       const height = model.viewportCappedEndRow - model.viewportCappedStartRow + 1;
diff --git a/addons/xterm-addon-webgl/src/RenderModel.ts b/addons/xterm-addon-webgl/src/RenderModel.ts
index 2b48047f..194f1778 100644
--- a/addons/xterm-addon-webgl/src/RenderModel.ts
+++ b/addons/xterm-addon-webgl/src/RenderModel.ts
@@ -22,6 +22,7 @@ export class RenderModel implements IRenderModel {
     this.lineLengths = new Uint32Array(0);
     this.selection = {
       hasSelection: false,
+      columnSelectMode: false,
       viewportStartRow: 0,
       viewportEndRow: 0,
       viewportCappedStartRow: 0,
diff --git a/addons/xterm-addon-webgl/src/Types.d.ts b/addons/xterm-addon-webgl/src/Types.d.ts
index f01092ee..d8a27aa7 100644
--- a/addons/xterm-addon-webgl/src/Types.d.ts
+++ b/addons/xterm-addon-webgl/src/Types.d.ts
@@ -56,6 +56,7 @@ export interface IRenderModel {
 
 export interface ISelectionRenderModel {
   hasSelection: boolean;
+  columnSelectMode: boolean;
   viewportStartRow: number;
   viewportEndRow: number;
   viewportCappedStartRow: number;
diff --git a/addons/xterm-addon-webgl/src/WebglRenderer.ts b/addons/xterm-addon-webgl/src/WebglRenderer.ts
index 8d52a35e..32632918 100644
--- a/addons/xterm-addon-webgl/src/WebglRenderer.ts
+++ b/addons/xterm-addon-webgl/src/WebglRenderer.ts
@@ -117,6 +117,9 @@ export class WebglRenderer extends Disposable implements IRenderer {
 
     this._refreshCharAtlas();
 
+    this._rectangleRenderer.updateSelection(this._model.selection);
+    this._glyphRenderer.updateSelection(this._model);
+
     // Force a full refresh
     this._model.clear();
   }
@@ -173,10 +176,10 @@ export class WebglRenderer extends Disposable implements IRenderer {
   public onSelectionChanged(start: [number, number], end: [number, number], columnSelectMode: boolean): void {
     this._renderLayers.forEach(l => l.onSelectionChanged(this._terminal, start, end, columnSelectMode));
 
-    this._updateSelectionModel(start, end);
+    this._updateSelectionModel(start, end, columnSelectMode);
 
-    this._rectangleRenderer.updateSelection(this._model.selection, columnSelectMode);
-    this._glyphRenderer.updateSelection(this._model, columnSelectMode);
+    this._rectangleRenderer.updateSelection(this._model.selection);
+    this._glyphRenderer.updateSelection(this._model);
 
     this._onRequestRedraw.fire({ start: 0, end: this._terminal.rows - 1 });
   }
@@ -292,7 +295,7 @@ export class WebglRenderer extends Disposable implements IRenderer {
     this._rectangleRenderer.updateBackgrounds(this._model);
   }
 
-  private _updateSelectionModel(start: [number, number], end: [number, number]): void {
+  private _updateSelectionModel(start: [number, number], end: [number, number], columnSelectMode: boolean): void {
     const terminal = this._terminal;
 
     // Selection does not exist
@@ -314,6 +317,7 @@ export class WebglRenderer extends Disposable implements IRenderer {
     }
 
     this._model.selection.hasSelection = true;
+    this._model.selection.columnSelectMode = columnSelectMode;
     this._model.selection.viewportStartRow = viewportStartRow;
     this._model.selection.viewportEndRow = viewportEndRow;
     this._model.selection.viewportCappedStartRow = viewportCappedStartRow;