diff --git a/src/arch/generic/types.hh b/src/arch/generic/types.hh
index 7f9f93f..64fef64 100644
--- a/src/arch/generic/types.hh
+++ b/src/arch/generic/types.hh
@@ -222,7 +222,7 @@
         nupc(1);
     }
 
-    UPCState() : _upc(0), _nupc(0) {}
+    UPCState() : _upc(0), _nupc(1) {}
     UPCState(Addr val) : _upc(0), _nupc(0) { set(val); }
 
     bool