diff --git a/apdUnitCreator.cpp b/apdUnitCreator.cpp
index c12cfdb39d24f595c17c2a1d3f911858de169f21..b62f9366bdfe6cdd854db4e4a419421de6e7c444 100644
--- a/apdUnitCreator.cpp
+++ b/apdUnitCreator.cpp
@@ -127,7 +127,7 @@ void loadSerialsFromFileName(string m_fileName, bool m_debug) {
         linestream >> newUnit.redSerial >> newUnit.blueSerial >> newUnit.crystalSerial >> barCode;
 
         if (barCode <1000000 )
-        barCode += 1909000000;
+        barCode += 1309000000;
         newUnit.barCode = std::to_string(barCode);
 
         std::cerr << "Found new unit with RS = " << newUnit.redSerial << ", BS = " << newUnit.blueSerial << ", CS = " << newUnit.crystalSerial << ", BC = " << newUnit.barCode << std::endl;