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-rw-r--r--extractor/grammar_extractor.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/extractor/grammar_extractor.h b/extractor/grammar_extractor.h
index 6c0aafbf..ae407b47 100644
--- a/extractor/grammar_extractor.h
+++ b/extractor/grammar_extractor.h
@@ -45,7 +45,7 @@ class GrammarExtractor {
// Converts the sentence to a vector of word ids and uses the RuleFactory to
// extract the SCFG rules which may be used to decode the sentence.
- Grammar GetGrammar(const string& sentence, const unordered_set<int> blacklisted_sentence_ids, const shared_ptr<DataArray> source_data_array);
+ Grammar GetGrammar(const string& sentence, const unordered_set<int>& blacklisted_sentence_ids, const shared_ptr<DataArray> source_data_array);
private:
// Splits the sentence in a vector of words.