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diff --git a/prolog/problems/dcg/number_proper_2/en.py b/prolog/problems/dcg/number_proper_2/en.py
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+++ b/prolog/problems/dcg/number_proper_2/en.py
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+id = 166
+name = 'number_proper/2'
+slug = 'numbers without leading zeros'
+
+description = '''\
+<p>Write a DCG with the starting symbol <code>number_proper</code> for the language of non-negative integers. The numbers should <em>not</em> contain leading zeros.</p>
+<p>Example words: <code>123</code>, <code>54</code>, <code>122</code>, <code>1221</code>, <code>0</code>.</p>'''
+
+hint = {}