diff --git a/src/mapping.cpp b/src/mapping.cpp
index d1a9507..88c6634 100644
--- a/src/mapping.cpp
+++ b/src/mapping.cpp
@@ -111,7 +111,6 @@ std::u32string map(std::u32string_view input) {
         break;
       case 2:
         return error;  // disallowed
-        break;
 
       // case 3 :
       default: