diff --git a/ReactCommon/react/renderer/runtimescheduler/tests/RuntimeSchedulerTest.cpp b/ReactCommon/react/renderer/runtimescheduler/tests/RuntimeSchedulerTest.cpp
index f1d19a694d1..a7b014022e3 100644
--- a/ReactCommon/react/renderer/runtimescheduler/tests/RuntimeSchedulerTest.cpp
+++ b/ReactCommon/react/renderer/runtimescheduler/tests/RuntimeSchedulerTest.cpp
@@ -159,7 +159,7 @@ TEST_F(RuntimeSchedulerTest, taskExpiration) {
 }
 
 TEST_F(RuntimeSchedulerTest, scheduleTwoTasksWithSamePriority) {
-  uint firstTaskCallOrder;
+  uint firstTaskCallOrder = 0;
   auto callbackOne =
       createHostFunctionFromLambda([this, &firstTaskCallOrder](bool) {
         firstTaskCallOrder = hostFunctionCallCount_;
@@ -192,7 +192,7 @@ TEST_F(RuntimeSchedulerTest, scheduleTwoTasksWithSamePriority) {
 }
 
 TEST_F(RuntimeSchedulerTest, scheduleTwoTasksWithDifferentPriorities) {
-  uint lowPriorityTaskCallOrder;
+  uint lowPriorityTaskCallOrder = 0;
   auto callbackOne =
       createHostFunctionFromLambda([this, &lowPriorityTaskCallOrder](bool) {
         lowPriorityTaskCallOrder = hostFunctionCallCount_;
diff --git a/ReactCommon/react/renderer/runtimescheduler/tests/StubQueue.h b/ReactCommon/react/renderer/runtimescheduler/tests/StubQueue.h
index a209474d8e7..e81fb065c9e 100644
--- a/ReactCommon/react/renderer/runtimescheduler/tests/StubQueue.h
+++ b/ReactCommon/react/renderer/runtimescheduler/tests/StubQueue.h
@@ -7,6 +7,7 @@
 
 #pragma once
 
+#include <condition_variable>
 #include <queue>
 
 class StubQueue {