diff --git a/lang/cmu_indic_lex/cmu_indic_lex.c b/lang/cmu_indic_lex/cmu_indic_lex.c
index e0ae73f..f48ffe6 100644
--- a/lang/cmu_indic_lex/cmu_indic_lex.c
+++ b/lang/cmu_indic_lex/cmu_indic_lex.c
@@ -283,6 +283,8 @@ static int cmu_indic_get_char_type(const cst_val *indic_char)
     return cmu_indic_offset_char[c].type;
 }
 
+int indic_digit_to_offset(const char *ind_digit);
+
 static int indic_text_splitable(const char *s,int i,int len1)
 {
     /* Returns true only if this and next chars are not both digits */
