diff --git a/src/json.hpp b/src/json.hpp
index ae3dab6f7..4198b1409 100644
--- a/src/json.hpp
+++ b/src/json.hpp
@@ -11664,7 +11664,8 @@ scan_number_any2:
 
 scan_number_done:
             // unget the character after the number
-            unget();
+            --chars_read;
+            next_unget = true;
 
             // terminate token
             add('\0');
@@ -11768,13 +11769,6 @@ scan_number_done:
                    : (current = ia->get_character());
         }
 
-        /// unget a character to the input
-        void unget() noexcept
-        {
-            --chars_read;
-            next_unget = true;
-        }
-
         /// add a character to yytext
         void add(int c)
         {