1 files changed, 7 insertions, 0 deletions
diff --git a/decoder/ff_lm_fsa.h b/decoder/ff_lm_fsa.h
index 1c8ebdad..d2df943e 100755
--- a/decoder/ff_lm_fsa.h
+++ b/decoder/ff_lm_fsa.h
@@ -115,8 +115,15 @@ struct LanguageModelFsa : public FsaFeatureFunctionBase<LanguageModelFsa> {
 
   // impl details:
   void set_ngram_order(int i); // if you build ff_from_fsa first, then increase this, you will get memory overflows.  otherwise, it's the same as a "-o i" argument to constructor
+  // note: if you adjust ngram_order, ff_from_fsa won't notice.
+
   double floor_; // log10prob minimum used (e.g. unk words)
 
+  // because we might have a custom fid due to lm name option:
+  void Init() {
+    InitHaveFid();
+  }
+
 private:
   int ngram_order_;
   int ctxlen_; // 1 less than above