diff --git a/src/test/java/net/kemitix/gitdb/GitDBTest.java b/src/test/java/net/kemitix/gitdb/GitDBTest.java
index 7619bbb..37bf247 100644
--- a/src/test/java/net/kemitix/gitdb/GitDBTest.java
+++ b/src/test/java/net/kemitix/gitdb/GitDBTest.java
@@ -124,11 +124,20 @@ class GitDBTest implements WithAssertions {
         //then
         assertThatExceptionOfType(GitDBRepoNotFoundException.class)
                 .isThrownBy(() -> GitDB.openLocal(dir))
-                .withMessageContaining("GitDB repo not found")
                 .withMessageContaining(dir.toString());
     }
 
     // When opening a repo in a dir that is a file then an exception is thrown
+    @Test
+    void openRepo_whenDirIsFile_thenThrowException() throws IOException {
+        //given
+        final Path dir = fileExists();
+        //then
+        assertThatExceptionOfType(GitDBRepoNotFoundException.class)
+                .isThrownBy(() -> GitDB.openLocal(dir))
+                .withMessageContaining(dir.toString());
+    }
+
     // When opening a repo in a dir that doesn't exist then an exception is thrown
 
     // When opening a repo in a dir that is a bare repo then GitDb is returned