diff --git a/YACReaderLibrary/server/controllers/comiccontroller.cpp b/YACReaderLibrary/server/controllers/comiccontroller.cpp
index 52ae4e00..f00461ca 100644
--- a/YACReaderLibrary/server/controllers/comiccontroller.cpp
+++ b/YACReaderLibrary/server/controllers/comiccontroller.cpp
@@ -79,7 +79,7 @@ void ComicController::service(HttpRequest& request, HttpResponse& response)
             session.setCurrentComic(comic.id, comicFile);
         }
 
-        response.setHeader("Content-Type", "plain/text; charset=utf-8");
+        response.setHeader("Content-Type", "text/plain; charset=utf-8");
 		//TODO this field is not used by the client!
 		response.writeText(QString("library:%1\r\n").arg(libraryName));
         response.writeText(QString("libraryId:%1\r\n").arg(libraryId));
diff --git a/YACReaderLibrary/server/controllers/comicdownloadinfocontroller.cpp b/YACReaderLibrary/server/controllers/comicdownloadinfocontroller.cpp
index aeab979a..8143ec82 100644
--- a/YACReaderLibrary/server/controllers/comicdownloadinfocontroller.cpp
+++ b/YACReaderLibrary/server/controllers/comicdownloadinfocontroller.cpp
@@ -10,7 +10,7 @@ ComicDownloadInfoController::ComicDownloadInfoController() {}
 
 void ComicDownloadInfoController::service(HttpRequest& request, HttpResponse& response)
 {
-    response.setHeader("Content-Type", "plain/text; charset=utf-8");
+    response.setHeader("Content-Type", "text/plain; charset=utf-8");
 
     QString path = QUrl::fromPercentEncoding(request.getPath()).toUtf8();
     QStringList pathElements = path.split('/');
diff --git a/YACReaderLibrary/server/controllers/foldercontentcontroller.cpp b/YACReaderLibrary/server/controllers/foldercontentcontroller.cpp
index 776d99cb..f07439ba 100644
--- a/YACReaderLibrary/server/controllers/foldercontentcontroller.cpp
+++ b/YACReaderLibrary/server/controllers/foldercontentcontroller.cpp
@@ -23,7 +23,7 @@ FolderContentController::FolderContentController() {}
 
 void FolderContentController::service(HttpRequest& request, HttpResponse& response)
 {
-    response.setHeader("Content-Type", "plain/text; charset=utf-8");
+    response.setHeader("Content-Type", "text/plain; charset=utf-8");
 
     QString path = QUrl::fromPercentEncoding(request.getPath()).toUtf8();
     QStringList pathElements = path.split('/');
diff --git a/YACReaderLibrary/server/controllers/folderinfocontroller.cpp b/YACReaderLibrary/server/controllers/folderinfocontroller.cpp
index 0d8f333f..6aaf9029 100644
--- a/YACReaderLibrary/server/controllers/folderinfocontroller.cpp
+++ b/YACReaderLibrary/server/controllers/folderinfocontroller.cpp
@@ -12,7 +12,7 @@ FolderInfoController::FolderInfoController() {}
 
 void FolderInfoController::service(HttpRequest& request, HttpResponse& response)
 {
-    response.setHeader("Content-Type", "plain/text; charset=utf-8");
+    response.setHeader("Content-Type", "text/plain; charset=utf-8");
 
     QString path = QUrl::fromPercentEncoding(request.getPath()).toUtf8();
 	QStringList pathElements = path.split('/');