diff --git a/src/test/ReactDefaultPerf.js b/src/test/ReactDefaultPerf.js
index 8b473a25e1..f051a3ab2d 100644
--- a/src/test/ReactDefaultPerf.js
+++ b/src/test/ReactDefaultPerf.js
@@ -156,6 +156,7 @@ var ReactDefaultPerf = {
           writes: {},
           displayNames: {},
           totalTime: 0,
+          created: {},
         });
         start = performanceNow();
         rv = func.apply(this, args);
@@ -228,6 +229,7 @@ var ReactDefaultPerf = {
         if (isRender) {
           addValue(entry.counts, rootNodeID, 1);
         } else if (isMount) {
+          entry.created[rootNodeID] = true;
           mountStack.push(0);
         }
 
diff --git a/src/test/ReactDefaultPerfAnalysis.js b/src/test/ReactDefaultPerfAnalysis.js
index 499e3a1f1a..9a8ad8f812 100644
--- a/src/test/ReactDefaultPerfAnalysis.js
+++ b/src/test/ReactDefaultPerfAnalysis.js
@@ -184,6 +184,10 @@ function getUnchangedComponents(measurement) {
         break;
       }
     }
+    // check if component newly created
+    if (measurement.created[id]) {
+      isDirty = true;
+    }
     if (!isDirty && measurement.counts[id] > 0) {
       cleanComponents[id] = true;
     }