diff --git a/lib/Target/AArch64/AArch64ISelLowering.cpp b/lib/Target/AArch64/AArch64ISelLowering.cpp
index 30094ddd402..0cd2186eade 100644
--- a/lib/Target/AArch64/AArch64ISelLowering.cpp
+++ b/lib/Target/AArch64/AArch64ISelLowering.cpp
@@ -38,10 +38,12 @@ using namespace llvm;
 STATISTIC(NumTailCalls, "Number of tail calls");
 STATISTIC(NumShiftInserts, "Number of vector shift inserts");
 
+namespace {
 enum AlignMode {
   StrictAlign,
   NoStrictAlign
 };
+}
 
 static cl::opt<AlignMode>
 Align(cl::desc("Load/store alignment support"),
diff --git a/lib/Target/ARM/ARMSubtarget.cpp b/lib/Target/ARM/ARMSubtarget.cpp
index c1b4562f411..9c4f05283f2 100644
--- a/lib/Target/ARM/ARMSubtarget.cpp
+++ b/lib/Target/ARM/ARMSubtarget.cpp
@@ -50,11 +50,13 @@ static cl::opt<bool>
 UseFusedMulOps("arm-use-mulops",
                cl::init(true), cl::Hidden);
 
+namespace {
 enum AlignMode {
   DefaultAlign,
   StrictAlign,
   NoStrictAlign
 };
+}
 
 static cl::opt<AlignMode>
 Align(cl::desc("Load/store alignment support"),