diff --git a/src/node_perf.h b/src/node_perf.h
index ca4374ebc58c19..fe5d2d996819d7 100644
--- a/src/node_perf.h
+++ b/src/node_perf.h
@@ -73,11 +73,11 @@ class PerformanceEntry : public BaseObject {
       return env_;
     }
 
-    std::string name() const {
+    const std::string& name() const {
       return name_;
     }
 
-    std::string type() const {
+    const std::string& type() const {
       return type_;
     }
 
@@ -135,11 +135,11 @@ class PerformanceEntry : public BaseObject {
 
   ~PerformanceEntry() {}
 
-  std::string name() const {
+  const std::string& name() const {
     return name_;
   }
 
-  std::string type() const {
+  const std::string& type() const {
     return type_;
   }