diff --git a/src/hydrogen.h b/src/hydrogen.h
index 05eb121e83..50c76cb69b 100644
--- a/src/hydrogen.h
+++ b/src/hydrogen.h
@@ -669,7 +669,6 @@ enum ReturnHandlingFlag {
 
 class FunctionState {
  public:
-
   FunctionState(HGraphBuilder* owner,
                 CompilationInfo* info,
                 TypeFeedbackOracle* oracle,
diff --git a/src/ia32/lithium-ia32.h b/src/ia32/lithium-ia32.h
index 8450974eef..647ba6aeae 100644
--- a/src/ia32/lithium-ia32.h
+++ b/src/ia32/lithium-ia32.h
@@ -1998,7 +1998,7 @@ class LCheckNonSmi: public LTemplateInstruction<0, 1, 0> {
 
 class LAllocateObject: public LTemplateInstruction<1, 1, 0> {
  public:
-  LAllocateObject(LOperand* context) {
+  explicit LAllocateObject(LOperand* context) {
     inputs_[0] = context;
   }