diff --git a/src/arch/power/types.hh b/src/arch/power/types.hh
index 646a14ce2..071b4b439 100644
--- a/src/arch/power/types.hh
+++ b/src/arch/power/types.hh
@@ -87,6 +87,7 @@ typedef GenericISA::SimplePCState<MachInst> PCState;
 // typedef int RegContextParam;
 // typedef int RegContextVal;
 
+} // PowerISA namespace
 
 namespace __hash_namespace {