diff --git a/Utilities/cmjsoncpp/src/lib_json/json_reader.cpp b/Utilities/cmjsoncpp/src/lib_json/json_reader.cpp
index 0249cc9f13..6eeba0e65e 100644
--- a/Utilities/cmjsoncpp/src/lib_json/json_reader.cpp
+++ b/Utilities/cmjsoncpp/src/lib_json/json_reader.cpp
@@ -1581,7 +1581,7 @@ bool OurReader::decodeNumber(Token& token, Value& decoded) {
     ++current;
   // TODO: Help the compiler do the div and mod at compile time or get rid of them.
   Value::LargestUInt maxIntegerValue =
-      isNegative ? Value::LargestUInt(-Value::minLargestInt)
+      isNegative ? Value::LargestUInt(Value::minLargestInt)
                  : Value::maxLargestUInt;
   Value::LargestUInt threshold = maxIntegerValue / 10;
   Value::LargestUInt value = 0;