diff --git a/src/test/fspp/fuse/FuseTest.cpp b/src/test/fspp/fuse/FuseTest.cpp
index d1fd3630..f411594d 100644
--- a/src/test/fspp/fuse/FuseTest.cpp
+++ b/src/test/fspp/fuse/FuseTest.cpp
@@ -35,9 +35,7 @@ TEST_F(FuseTest, setupAndTearDown) {
 
 TEST_F(FuseTest, openFile) {
   const char *filename = "/myfile";
-  EXPECT_CALL(fsimpl, lstat(StrEq(filename), _)).WillOnce(Invoke([](const char*, struct ::stat* result) {
-    result->st_mode = S_IFREG;
-  }));
+  EXPECT_CALL(fsimpl, lstat(StrEq(filename), _)).WillOnce(ReturnIsFileStat);
   EXPECT_CALL(fsimpl, openFile(StrEq(filename), OpenFlagsEq(O_RDWR)))
     .Times(1);
 
diff --git a/src/test/testutils/FuseTest.h b/src/test/testutils/FuseTest.h
index 532f27be..c2ae97ef 100644
--- a/src/test/testutils/FuseTest.h
+++ b/src/test/testutils/FuseTest.h
@@ -118,10 +118,17 @@ public:
   }
 
   MockFilesystem fsimpl;
+
+  static ::testing::Action<void(const char*, struct ::stat*)> ReturnIsFileStat;
 };
 
 MATCHER_P(OpenFlagsEq, expectedFlags, "") {
   return expectedFlags == (O_ACCMODE & arg);
 }
 
+::testing::Action<void(const char*, struct ::stat*)> FuseTest::ReturnIsFileStat =
+    ::testing::Invoke([](const char*, struct ::stat* result) {
+      result->st_mode = S_IFREG;
+    });
+
 #endif