diff --git a/src/node_win32_perfctr_provider.cc b/src/node_win32_perfctr_provider.cc
index ebb299e4c54758..df7812b1f8a6a4 100644
--- a/src/node_win32_perfctr_provider.cc
+++ b/src/node_win32_perfctr_provider.cc
@@ -159,7 +159,7 @@ void InitPerfCountersWin32() {
 
     status = perfctr_setCounterSetInfo(NodeCounterProvider,
                                        &NodeCounterSetInfo.CounterSet,
-                                       sizeof(NodeCounterSetInfo));
+                                       sizeof(NodeCounterSetInfo.CounterSet));
     if (status != ERROR_SUCCESS) {
       perfctr_stopProvider(NodeCounterProvider);
       NodeCounterProvider = nullptr;