diff --git a/source/libs/index/inc/index_fst.h b/source/libs/index/inc/index_fst.h
index b137690a05..7ab9358cd1 100644
--- a/source/libs/index/inc/index_fst.h
+++ b/source/libs/index/inc/index_fst.h
@@ -100,7 +100,7 @@ FstState fstStateCreate(State state);
 
 //compile
 void fstStateCompileForOneTransNext(FstCountingWriter *w, CompiledAddr addr, uint8_t inp);
-void fstStateCompileForOneTrans(FstCountingWriter *w, CompiledAddr addr, FstTransition trn);
+void fstStateCompileForOneTrans(FstCountingWriter *w, CompiledAddr addr, FstTransition *trn);
 void fstStateCompileForAnyTrans(FstCountingWriter *w, CompiledAddr addr, FstBuilderNode *node);
 
 // set_comm_input
diff --git a/source/libs/index/src/index_fst.c b/source/libs/index/src/index_fst.c
index 31b7668156..ac51a6f117 100644
--- a/source/libs/index/src/index_fst.c
+++ b/source/libs/index/src/index_fst.c
@@ -195,12 +195,14 @@ void fstStateCompileForOneTransNext(FstCountingWriter *w, CompiledAddr addr, uin
   uint8_t v = fstStateCommInput(&s, &null);
   if (null) {
     // w->write_all(&[inp])
-  }  
+    fstCountingWriterWrite(w, &inp, 1);
+  }     
+  fstCountingWriterWrite(w, &(s.val), 1);
   // w->write_all(&[s.val])
-  return ;
+  return;
 }
-void fstStateCompileForOneTrans(FstCountingWriter *w, CompiledAddr addr, FstTransition trn) {
-  
+void fstStateCompileForOneTrans(FstCountingWriter *w, CompiledAddr addr, FstTransition* trn) {
+  Output val = trn->out;   
   return ;
 
 }