diff --git a/src/renderer/Renderer.ts b/src/renderer/Renderer.ts
index bc1a7a1b..58f31ff7 100644
--- a/src/renderer/Renderer.ts
+++ b/src/renderer/Renderer.ts
@@ -48,13 +48,13 @@ export class Renderer {
 
   public onResize(cols: number, rows: number): void {
     const width = this._terminal.charMeasure.width * this._terminal.cols;
-    const height = Math.ceil(this._terminal.charMeasure.height * this._terminal.options.lineHeight) * this._terminal.rows;
+    const height = Math.floor(this._terminal.charMeasure.height * this._terminal.options.lineHeight) * this._terminal.rows;
     this._renderLayers.forEach(l => l.resize(this._terminal, width, height, false));
   }
 
   public onCharSizeChanged(charWidth: number, charHeight: number): void {
     const width = charWidth * this._terminal.cols;
-    const height = charHeight * this._terminal.rows;
+    const height = Math.floor(charHeight * this._terminal.options.lineHeight) * this._terminal.rows;
     this._renderLayers.forEach(l => l.resize(this._terminal, width, height, true));
   }