diff --git a/src/be/jeffcheasey88/peeratcode/routes/ChapterElement.java b/src/be/jeffcheasey88/peeratcode/routes/ChapterElement.java
index 9823918..0f3794f 100644
--- a/src/be/jeffcheasey88/peeratcode/routes/ChapterElement.java
+++ b/src/be/jeffcheasey88/peeratcode/routes/ChapterElement.java
@@ -32,8 +32,8 @@ public class ChapterElement implements Response {
 			JSONObject chapterJSON = new JSONObject();
 			chapterJSON.put("id", chapter.getId());
 			chapterJSON.put("name", chapter.getName());
-			if (chapter.getStartDate() != null) chapterJSON.put("startDate", chapter.getStartDate());
-			if (chapter.getEndDate() != null) chapterJSON.put("endDate", chapter.getEndDate());
+			if (chapter.getStartDate() != null) chapterJSON.put("startDate", chapter.getStartDate().toString());
+			if (chapter.getEndDate() != null) chapterJSON.put("endDate", chapter.getEndDate().toString());
 			JSONArray puzzles = new JSONArray();
 			for (Puzzle puzzle : chapter.getPuzzles()) {
 				JSONObject puzzleJSON = new JSONObject();