diff --git a/Gems/AWSGameLift/Code/AWSGameLiftClient/Tests/Activity/AWSGameLiftCreateSessionActivityTest.cpp b/Gems/AWSGameLift/Code/AWSGameLiftClient/Tests/Activity/AWSGameLiftCreateSessionActivityTest.cpp
index b1601e248a..70dcdba1af 100644
--- a/Gems/AWSGameLift/Code/AWSGameLiftClient/Tests/Activity/AWSGameLiftCreateSessionActivityTest.cpp
+++ b/Gems/AWSGameLift/Code/AWSGameLiftClient/Tests/Activity/AWSGameLiftCreateSessionActivityTest.cpp
@@ -44,7 +44,7 @@ TEST_F(AWSGameLiftCreateSessionActivityTest, ValidateCreateSessionRequest_CallWi
 TEST_F(AWSGameLiftCreateSessionActivityTest, ValidateCreateSessionRequest_CallWithNegativeMaxPlayer_GetFalseResult)
 {
     AWSGameLiftCreateSessionRequest request;
-    request.m_maxPlayer = -1;
+    request.m_maxPlayer = std::numeric_limits<uint64_t>::max();
 
     auto result = CreateSessionActivity::ValidateCreateSessionRequest(request);
     EXPECT_FALSE(result);
diff --git a/Gems/AWSGameLift/Code/AWSGameLiftClient/Tests/Activity/AWSGameLiftCreateSessionOnQueueActivityTest.cpp b/Gems/AWSGameLift/Code/AWSGameLiftClient/Tests/Activity/AWSGameLiftCreateSessionOnQueueActivityTest.cpp
index 529179b1fb..8a785d8007 100644
--- a/Gems/AWSGameLift/Code/AWSGameLiftClient/Tests/Activity/AWSGameLiftCreateSessionOnQueueActivityTest.cpp
+++ b/Gems/AWSGameLift/Code/AWSGameLiftClient/Tests/Activity/AWSGameLiftCreateSessionOnQueueActivityTest.cpp
@@ -40,7 +40,7 @@ TEST_F(AWSGameLiftCreateSessionOnQueueActivityTest, ValidateCreateSessionOnQueue
 TEST_F(AWSGameLiftCreateSessionOnQueueActivityTest, ValidateCreateSessionOnQueueRequest_CallWithNegativeMaxPlayer_GetFalseResult)
 {
     AWSGameLiftCreateSessionOnQueueRequest request;
-    request.m_maxPlayer = -1;
+    request.m_maxPlayer = std::numeric_limits<uint64_t>::max();
 
     auto result = CreateSessionOnQueueActivity::ValidateCreateSessionOnQueueRequest(request);
     EXPECT_FALSE(result);