diff --git a/cpp/core/src/qrcode/decoder/Version.cpp b/cpp/core/src/qrcode/decoder/Version.cpp
index 39bbf7cdb..15bf80ccc 100644
--- a/cpp/core/src/qrcode/decoder/Version.cpp
+++ b/cpp/core/src/qrcode/decoder/Version.cpp
@@ -118,6 +118,7 @@ namespace qrcode {
           FormatInformation::numBitsDiffering(versionBits, targetVersion);
         if (bitsDifference < bestDifference) {
           bestVersion = i + 7;
+          bestDifference = bitsDifference;
         }
       }
       // We can tolerate up to 3 bits of error since no two version info codewords will