diff --git a/tools/gn/value.cc b/tools/gn/value.cc
index b5e21f0..0afbc7d 100644
--- a/tools/gn/value.cc
+++ b/tools/gn/value.cc
@@ -73,7 +73,7 @@
     scope_value_ = other.scope_value_->MakeClosure();
 }
 
-Value::Value(Value&& other) = default;
+Value::Value(Value&& other) noexcept = default;
 
 Value::~Value() {
 }
diff --git a/tools/gn/value.h b/tools/gn/value.h
index 0428818..3ce0117 100644
--- a/tools/gn/value.h
+++ b/tools/gn/value.h
@@ -43,7 +43,7 @@
   Value(const ParseNode* origin, std::unique_ptr<Scope> scope);
 
   Value(const Value& other);
-  Value(Value&& other);
+  Value(Value&& other) noexcept;
   ~Value();
 
   Value& operator=(const Value& other);