1 files changed, 3 insertions, 3 deletions
diff --git a/src/processor/stackwalker_amd64.cc b/src/processor/stackwalker_amd64.cc
index d5ac6c65..f906f20b 100644
--- a/src/processor/stackwalker_amd64.cc
+++ b/src/processor/stackwalker_amd64.cc
@@ -126,7 +126,7 @@ StackFrame* StackwalkerAMD64::GetContextFrame() {
 }
 
 StackFrameAMD64* StackwalkerAMD64::GetCallerByCFIFrameInfo(
-    const vector<StackFrame*> &frames,
+    const vector<StackFrame*>& frames,
     CFIFrameInfo* cfi_frame_info) {
   StackFrameAMD64* last_frame = static_cast<StackFrameAMD64*>(frames.back());
 
@@ -217,7 +217,7 @@ StackFrameAMD64* StackwalkerAMD64::GetCallerByFramePointerRecovery(
 }
 
 StackFrameAMD64* StackwalkerAMD64::GetCallerByStackScan(
-    const vector<StackFrame*> &frames) {
+    const vector<StackFrame*>& frames) {
   StackFrameAMD64* last_frame = static_cast<StackFrameAMD64*>(frames.back());
   uint64_t last_rsp = last_frame->context.rsp;
   uint64_t caller_rip_address, caller_rip;
@@ -273,7 +273,7 @@ StackFrame* StackwalkerAMD64::GetCallerFrame(const CallStack* stack,
     return NULL;
   }
 
-  const vector<StackFrame*> &frames = *stack->frames();
+  const vector<StackFrame*>& frames = *stack->frames();
   StackFrameAMD64* last_frame = static_cast<StackFrameAMD64*>(frames.back());
   scoped_ptr<StackFrameAMD64> new_frame;