diff --git a/pdf.js b/pdf.js
index ae8984907..27e65370d 100644
--- a/pdf.js
+++ b/pdf.js
@@ -4884,6 +4884,9 @@ var CanvasExtraState = (function canvasExtraState() {
     this.strokeColorSpaceObj = null;
     this.fillColorObj = null;
     this.strokeColorObj = null;
+    // Default fore and background colors
+    this.fillColor = "#000000";
+    this.strokeColor = "#000000";
 
     this.old = old;
   }