Adjust error message

1 files changed, 1 insertions, 1 deletions

diff --git a/test/mammoth.tests.js b/test/mammoth.tests.js
index 2dbdbe4..3ce96d4 100644
--- a/test/mammoth.tests.js
+++ b/test/mammoth.tests.js
@@ -424,6 +424,6 @@ test('should throw error if file is not a valid docx document', function() {
     return mammoth.convertToHtml({path: docxPath}).then(function(result) {
         assert.ok(false, "Expected error");
     }, function(error) {
-        assert.equal(error.message, "Could not find word/document.xml in ZIP file. Are you sure this is a valid .docx file?");
+        assert.equal(error.message, "Could not find main document part. Are you sure this is a valid .docx file?");
     });
 });