diff --git a/src/main/java/de/thm/arsnova/controller/LecturerQuestionController.java b/src/main/java/de/thm/arsnova/controller/LecturerQuestionController.java
index 1a476d2dc58d64757b33fde0a6bb52350bcd6bc9..e2903e16458b313ec77e226670e08ccaa782cca5 100644
--- a/src/main/java/de/thm/arsnova/controller/LecturerQuestionController.java
+++ b/src/main/java/de/thm/arsnova/controller/LecturerQuestionController.java
@@ -445,7 +445,7 @@ public class LecturerQuestionController extends AbstractController {
 	@RequestMapping(value = "/getsubjectsort", method = RequestMethod.GET)
 	public String getSubjectSortType(
 			@RequestParam(required = true) final String sessionkey,
-            @RequestParam(required = true) final String ispreparation
+			@RequestParam(required = true) final String ispreparation
 			) {
 		return questionService.getSubjectSortType(sessionkey, ispreparation);
 	}
@@ -453,9 +453,9 @@ public class LecturerQuestionController extends AbstractController {
 	@RequestMapping(value = "/setquestionsort", method = RequestMethod.POST)
 	public void setQuestionSortOrder(
 			@RequestParam(required = true) final String sessionkey,
-            @RequestParam(required = true) final String subject,
-            @RequestParam(required = true) final String sorttype,
-            @RequestParam(required = true) final String ispreparation,
+			@RequestParam(required = true) final String subject,
+			@RequestParam(required = true) final String sorttype,
+			@RequestParam(required = true) final String ispreparation,
 			@RequestBody String[] sortOrder
 			) {
 		try {
@@ -469,7 +469,7 @@ public class LecturerQuestionController extends AbstractController {
 	public String getQuestionSortType(
 			@RequestParam(required = true) final String sessionkey,
 			@RequestParam(required = true) final String subject,
-            @RequestParam(required = true) final String ispreparation
+			@RequestParam(required = true) final String ispreparation
 			) {
 		return questionService.getQuestionSortType(sessionkey, ispreparation, subject);
 	}
diff --git a/src/main/java/de/thm/arsnova/services/IQuestionService.java b/src/main/java/de/thm/arsnova/services/IQuestionService.java
index 17a463000fa0283d555071801e9296bac51c38bb..e9abb9421f1a97c55764ab1ce0c7e346c4353a4a 100644
--- a/src/main/java/de/thm/arsnova/services/IQuestionService.java
+++ b/src/main/java/de/thm/arsnova/services/IQuestionService.java
@@ -138,9 +138,9 @@ public interface IQuestionService {
 
 	int getAbstentionAnswerCount(String questionId);
     
-    String getSubjectSortType(String sessionkey, String isPreparation);
+	String getSubjectSortType(String sessionkey, String isPreparation);
+	
+	SortOrder setSort(String sessionkey, String subject, String sortType, String isPreparation, String[] sortOrder);
     
-    SortOrder setSort(String sessionkey, String subject, String sortType, String isPreparation, String[] sortOrder);
-    
-    String getQuestionSortType(String sessionkey, String isPreparation, String subject);
+	String getQuestionSortType(String sessionkey, String isPreparation, String subject);
 }
diff --git a/src/main/java/de/thm/arsnova/services/QuestionService.java b/src/main/java/de/thm/arsnova/services/QuestionService.java
index a44acfb73af485897148563c8cc31746750818cf..dd37b0da3ae40b1dbb0ca5be07f6852e15121350 100644
--- a/src/main/java/de/thm/arsnova/services/QuestionService.java
+++ b/src/main/java/de/thm/arsnova/services/QuestionService.java
@@ -156,10 +156,10 @@ public class QuestionService implements IQuestionService, ApplicationEventPublis
 				addToSortOrder(subjectSortOrder, question.getSubject());
 			}
 			else {
-            	addToSortOrder(questionSortOrder, question.get_id());
+				addToSortOrder(questionSortOrder, question.get_id());
 			}
-        }
-        
+		}
+		
 		final NewQuestionEvent event = new NewQuestionEvent(this, session, result);
 		this.publisher.publishEvent(event);
 
@@ -918,14 +918,14 @@ public class QuestionService implements IQuestionService, ApplicationEventPublis
             	Question question = getQuestion(qid);
             	hash.put(question.getText(), qid);
         	}
-        	List<String> sortList = new ArrayList();
-        	List<String> keys = new ArrayList(hash.keySet());
+			List<String> sortList = new ArrayList();
+			List<String> keys = new ArrayList(hash.keySet());
 			Collections.sort(keys);
-        	for (String textKey : keys) {
-            	sortList.add(hash.get(textKey));
-        	}
-        	sortOrder.setSortOrder(sortList);
-        	return sortOrder;
+			for (String textKey : keys) {
+				sortList.add(hash.get(textKey));
+			}
+			sortOrder.setSortOrder(sortList);
+			return sortOrder;
 		}
-    }
+	}
 }