diff --git a/src/libsync/excludedfiles.cpp b/src/libsync/excludedfiles.cpp
index 3724c4880f..d4eed06d86 100644
--- a/src/libsync/excludedfiles.cpp
+++ b/src/libsync/excludedfiles.cpp
@@ -14,8 +14,6 @@
 #include "excludedfiles.h"
 
 #include <QFileInfo>
-#include <QReadLocker>
-#include <QWriteLocker>
 
 extern "C" {
 #include "std/c_string.h"
@@ -44,13 +42,11 @@ ExcludedFiles& ExcludedFiles::instance()
 
 void ExcludedFiles::addExcludeFilePath(const QString& path)
 {
-    QWriteLocker locker(&_mutex);
     _excludeFiles.append(path);
 }
 
 bool ExcludedFiles::reloadExcludes()
 {
-    QWriteLocker locker(&_mutex);
     c_strlist_destroy(*_excludesPtr);
     *_excludesPtr = NULL;
 
@@ -89,6 +85,5 @@ bool ExcludedFiles::isExcluded(
         relativePath.chop(1);
     }
 
-    QReadLocker lock(&_mutex);
     return csync_excluded_no_ctx(*_excludesPtr, relativePath.toUtf8(), type) != CSYNC_NOT_EXCLUDED;
 }
diff --git a/src/libsync/excludedfiles.h b/src/libsync/excludedfiles.h
index 3a71108b57..5e47f7c2d8 100644
--- a/src/libsync/excludedfiles.h
+++ b/src/libsync/excludedfiles.h
@@ -16,7 +16,6 @@
 #include "owncloudlib.h"
 
 #include <QObject>
-#include <QReadWriteLock>
 #include <QStringList>
 
 extern "C" {
@@ -68,7 +67,6 @@ private:
     // but the pointer can be in a csync_context so that it can itself also query the list.
     c_strlist_t** _excludesPtr;
     QStringList _excludeFiles;
-    mutable QReadWriteLock _mutex;
 };
 
 } // namespace OCC