diff --git a/filecheck/config.py b/filecheck/config.py
index dbcfaa8..21f3631 100644
--- a/filecheck/config.py
+++ b/filecheck/config.py
@@ -13,7 +13,7 @@ class Config:
     mimes_pdf = ('pdf', 'postscript',)
     mimes_xml = ('xml',)
     mimes_ms = ('dosexec',)
-    mimes_compressed = ('zip', 'rar', 'bzip2', 'lzip', 'lzma', 'lzop',
+    mimes_compressed = ('zip', 'rar', 'x-rar', 'bzip2', 'lzip', 'lzma', 'lzop',
                         'xz', 'compress', 'gzip', 'tar',)
     mimes_data = ('octet-stream',)
 
@@ -31,6 +31,7 @@ class Config:
         'application/x-dosexec': 'application/x-msdos-program',
         # Other apps with confusing mimetypes
         'application/rtf': 'text/rtf',
+        'application/rar': 'application/x-rar'
     }
 
     # EXTS
diff --git a/filecheck/filecheck.py b/filecheck/filecheck.py
index 85d3dbe..4758003 100644
--- a/filecheck/filecheck.py
+++ b/filecheck/filecheck.py
@@ -92,7 +92,7 @@ class File(FileBase):
                     expected_mimetype = Config.aliases[expected_mimetype]
             is_known_extension = self.extension in mimetypes.types_map.keys()
             if is_known_extension and expected_mimetype != self.mimetype:
-                self.make_dangerous('Mimetype does not match expected mimetype for this extension')
+                self.make_dangerous('Mimetype does not match expected mimetype ({}) for this extension'.format(expected_mimetype))
 
     def _check_mimetype(self):
         """
diff --git a/tests/file_catalog.yaml b/tests/file_catalog.yaml
index 71a0903..7b40862 100644
--- a/tests/file_catalog.yaml
+++ b/tests/file_catalog.yaml
@@ -12,7 +12,6 @@ normal:
   Example.ogg: # Added: 27-06-2017, source: https://en.wikipedia.org/wiki/File:Example.ogg
     description: Ogg vorbis sound file
     mimetype: audio/ogg
-    xfail: True
   Example.png: # Added: 27-06-2017, source: https://en.wikipedia.org/wiki/File:Example.png
     mimetype: image/png
   pdf-sample.pdf: # Added: 27-06-2017, source: http://che.org.il/wp-content/uploads/2016/12/pdf-sample.pdf
@@ -22,14 +21,13 @@ normal:
   rar_archive.rar: # Added: 27-06-2017, Rar archive. Source: hand-generated
     description: rar archive
     mimetype: application/x-rar
-    xfail: True
   rich_text.rtf: # Added 27-06-2017), source: hand-generated
     mimetype: text/rtf
   sample_mpeg4.mp4: # Added 28-06-2017, source: https://support.apple.com/en-us/HT201549
     mimetype: video/mp4
   word_docx.docx: # Added 24-07-2017, source: hand-generated using MacOS Microsoft Word 2011
     description: normal word document
-    # mimetype:
+    mimetype: application/vnd.openxmlformats-officedocument.wordprocessingml.document
   zip_archive.zip: # Added 27-06-2017, source: hand-generated
     mimetype: application/zip