diff --git a/vertx-core/src/test/java/io/vertx/tests/file/FileResolverTestBase.java b/vertx-core/src/test/java/io/vertx/tests/file/FileResolverTestBase.java
index 76c4d99b0cc..32d87e4c6d3 100644
--- a/vertx-core/src/test/java/io/vertx/tests/file/FileResolverTestBase.java
+++ b/vertx-core/src/test/java/io/vertx/tests/file/FileResolverTestBase.java
@@ -442,7 +442,10 @@ public void testReadFileInDirThenReadDirMultipleLevels() {
   @Test
   public void testBugEndWithSlash() {
     FileResolver resolver = ((VertxInternal) vertx).fileResolver();
-    File buff = resolver.resolveFile("tree/");
+    File f = resolver.resolveFile("tree/");
+    assertNotNull(f);
+    assertTrue(f.isDirectory());
+    assertEquals("tree", f.getName());
   }
 
   @Test