diff --git a/fontbakery-check-ttf.py b/fontbakery-check-ttf.py
index 31471261fb..958acaf150 100755
--- a/fontbakery-check-ttf.py
+++ b/fontbakery-check-ttf.py
@@ -1617,7 +1617,7 @@ def is_valid_version_format(value):
       fb.ok('Version format in NAME table is correct.')
     else:
       fb.error(('The NAMEID_VERSION_STRING (nameID={}) value must follow '
-                'the pattern Version X.Y.'
+                'the pattern Version X.Y between 1.000 and 9.999.'
                 ' Current value: {}').format(NAMEID_VERSION_STRING,
                                              version_string))