diff --git a/src/test/testutils/FuseTest.cpp b/src/test/testutils/FuseTest.cpp
index 014c2178..8911deb2 100644
--- a/src/test/testutils/FuseTest.cpp
+++ b/src/test/testutils/FuseTest.cpp
@@ -2,3 +2,6 @@
 
 using ::testing::Action;
 using ::testing::Invoke;
+
+MockFilesystem::MockFilesystem() {}
+MockFilesystem::~MockFilesystem() {}
diff --git a/src/test/testutils/FuseTest.h b/src/test/testutils/FuseTest.h
index 44becba5..0f8ef05c 100644
--- a/src/test/testutils/FuseTest.h
+++ b/src/test/testutils/FuseTest.h
@@ -34,6 +34,9 @@
 
 class MockFilesystem: public fspp::Filesystem {
 public:
+  MockFilesystem();
+  virtual ~MockFilesystem();
+
   MOCK_PATH_METHOD2(openFile, int, int);
   MOCK_METHOD1(closeFile, void(int));
   MOCK_PATH_METHOD2(lstat, void, struct ::stat*);