diff --git a/simulators/KeenKraken/wiring.cpp b/simulators/KeenKraken/wiring.cpp
index cd1e558e..27d3c166 100644
--- a/simulators/KeenKraken/wiring.cpp
+++ b/simulators/KeenKraken/wiring.cpp
@@ -143,7 +143,7 @@ bool initializeParameters() {
   theMagicBreakCfg.TerminateOnMagicBreak.initialize(-1);
   theMagicBreakCfg.EnableIterationCounts.initialize(false);
 
-  theMMUCfg.Cores.initialize(1);
+  theMMUCfg.cores.initialize(1);
   theMMUCfg.iTLBSize.initialize(64);
   theMMUCfg.dTLBSize.initialize(64);