diff --git a/lib/ComicBook.js b/lib/ComicBook.js
index 1238aca..a1f1962 100755
--- a/lib/ComicBook.js
+++ b/lib/ComicBook.js
@@ -631,7 +631,8 @@ function ComicBook(id, srcs, opts) {
 			ComicBook.prototype.enhance[action](options);
 		});
 
-		var current_page = (options.displayMode === "double") ? (pointer+1) + "-" + (pointer+2) : pointer+1
+		var current_page = (options.displayMode === "double" && pointer+2 <= srcs.length) 
+			? (pointer+1) + "-" + (pointer+2) : pointer+1
 		$("#cb-current-page").text(current_page);
 
 		// revert page mode back to double if it was auto switched for a double page spread