diff --git a/src/sim/system.hh b/src/sim/system.hh
--- a/src/sim/system.hh
+++ b/src/sim/system.hh
@@ -121,8 +121,6 @@
     BaseMasterPort& getMasterPort(const std::string &if_name,
                                   PortID idx = InvalidPortID);
 
-    static const char *MemoryModeStrings[4];
-
     /** @{ */
     /**
      * Is the system in atomic mode?
# Node ID 00b2cc29603c4fc90547778736c2336a9da90ba9
# Parent  cb4e86c177672fde6be7a409793c944e36353fc0
diff --git a/src/sim/system.cc b/src/sim/system.cc
--- a/src/sim/system.cc
+++ b/src/sim/system.cc
@@ -462,9 +462,6 @@
     return masterIds[master_id];
 }
 
-const char *System::MemoryModeStrings[4] = {"invalid", "atomic", "timing",
-                                            "atomic_noncaching"};
-
 System *
 SystemParams::create()
 {