1 files changed, 0 insertions, 2 deletions
diff --git a/src/lookup/phonetic_lookup.h b/src/lookup/phonetic_lookup.h
index 1108198..078a467 100644
--- a/src/lookup/phonetic_lookup.h
+++ b/src/lookup/phonetic_lookup.h
@@ -111,8 +111,6 @@ struct matrix_value_t {
 #include "phonetic_lookup_heap.h"
 #endif
 
-enum constraint_type{NO_CONSTRAINT, CONSTRAINT_ONESTEP, CONSTRAINT_NOSEARCH };
-
 struct trellis_constraint_t {
     /* the constraint type */
     constraint_type m_type;