diff --git a/src/image.js b/src/image.js
index f24d28638..a691bcd8c 100644
--- a/src/image.js
+++ b/src/image.js
@@ -199,7 +199,7 @@ var PDFImage = (function pdfImage() {
       var length = width * height * 4;
 
       // Is there a one-to-one correspondence between pixels in the loop below?
-      if (length !== 4*comps.length/3)
+      if (length !== 4 * comps.length / 3)
         error('Number of image pixels mismatch (RGB)');
 
       for (var i = 0; i < length; i += 4) {