diff --git a/include/ticcl/ticcl_common.h b/include/ticcl/ticcl_common.h
index d39d383..9700b44 100644
--- a/include/ticcl/ticcl_common.h
+++ b/include/ticcl/ticcl_common.h
@@ -35,7 +35,7 @@
 #include "unicode/uchar.h"
 
 namespace ticcl {
-  typedef uint64_t bitType;
+  using bitType = uint64_t;
 
   const std::string S_SEPARATOR = "_";
   const icu::UnicodeString US_SEPARATOR = "_";