diff --git a/runtime/vm/code_generator.cc b/runtime/vm/code_generator.cc
index ddbfbea8f02..ef90b547a17 100644
--- a/runtime/vm/code_generator.cc
+++ b/runtime/vm/code_generator.cc
@@ -1960,7 +1960,7 @@ void DeoptimizeAt(const Code& optimized_code, StackFrame* frame) {
   const Instructions& instrs =
       Instructions::Handle(zone, optimized_code.instructions());
   {
-    WritableInstructionsScope writable(instrs.PayloadStart(), instrs.size());
+    WritableInstructionsScope writable(instrs.PayloadStart(), instrs.Size());
     CodePatcher::InsertDeoptimizationCallAt(frame->pc());
     if (FLAG_trace_patching) {
       const String& name = String::Handle(function.name());
diff --git a/runtime/vm/code_patcher_ia32.cc b/runtime/vm/code_patcher_ia32.cc
index 45f39238fc6..d0b0a3e5e43 100644
--- a/runtime/vm/code_patcher_ia32.cc
+++ b/runtime/vm/code_patcher_ia32.cc
@@ -163,7 +163,7 @@ void CodePatcher::PatchStaticCallAt(uword return_address,
                                     const Code& code,
                                     const Code& new_target) {
   const Instructions& instrs = Instructions::Handle(code.instructions());
-  WritableInstructionsScope writable(instrs.PayloadStart(), instrs.size());
+  WritableInstructionsScope writable(instrs.PayloadStart(), instrs.Size());
   ASSERT(code.ContainsInstructionAt(return_address));
   StaticCall call(return_address);
   call.set_target(new_target);
diff --git a/runtime/vm/debugger_dbc.cc b/runtime/vm/debugger_dbc.cc
index b808967c92a..83046771b12 100644
--- a/runtime/vm/debugger_dbc.cc
+++ b/runtime/vm/debugger_dbc.cc
@@ -35,7 +35,7 @@ void CodeBreakpoint::PatchCode() {
   const Code& code = Code::Handle(code_);
   const Instructions& instrs = Instructions::Handle(code.instructions());
   {
-    WritableInstructionsScope writable(instrs.PayloadStart(), instrs.size());
+    WritableInstructionsScope writable(instrs.PayloadStart(), instrs.Size());
     saved_value_ = *CallInstructionFromReturnAddress(pc_);
     switch (breakpoint_kind_) {
       case RawPcDescriptors::kIcCall:
@@ -77,7 +77,7 @@ void CodeBreakpoint::RestoreCode() {
   const Code& code = Code::Handle(code_);
   const Instructions& instrs = Instructions::Handle(code.instructions());
   {
-    WritableInstructionsScope writable(instrs.PayloadStart(), instrs.size());
+    WritableInstructionsScope writable(instrs.PayloadStart(), instrs.Size());
     switch (breakpoint_kind_) {
       case RawPcDescriptors::kIcCall:
       case RawPcDescriptors::kUnoptStaticCall:
diff --git a/runtime/vm/debugger_ia32.cc b/runtime/vm/debugger_ia32.cc
index c900f75fa13..83cd02df726 100644
--- a/runtime/vm/debugger_ia32.cc
+++ b/runtime/vm/debugger_ia32.cc
@@ -30,7 +30,7 @@ void CodeBreakpoint::PatchCode() {
   const Instructions& instrs = Instructions::Handle(code.instructions());
   Code& stub_target = Code::Handle();
   {
-    WritableInstructionsScope writable(instrs.PayloadStart(), instrs.size());
+    WritableInstructionsScope writable(instrs.PayloadStart(), instrs.Size());
     switch (breakpoint_kind_) {
       case RawPcDescriptors::kIcCall:
       case RawPcDescriptors::kUnoptStaticCall: {
@@ -57,7 +57,7 @@ void CodeBreakpoint::RestoreCode() {
   const Code& code = Code::Handle(code_);
   const Instructions& instrs = Instructions::Handle(code.instructions());
   {
-    WritableInstructionsScope writable(instrs.PayloadStart(), instrs.size());
+    WritableInstructionsScope writable(instrs.PayloadStart(), instrs.Size());
     switch (breakpoint_kind_) {
       case RawPcDescriptors::kIcCall:
       case RawPcDescriptors::kUnoptStaticCall: