diff --git a/Gems/EMotionFX/Code/MCore/Source/ReflectionSerializer.cpp b/Gems/EMotionFX/Code/MCore/Source/ReflectionSerializer.cpp
index 7dbbfcdcd6..b13260b01f 100644
--- a/Gems/EMotionFX/Code/MCore/Source/ReflectionSerializer.cpp
+++ b/Gems/EMotionFX/Code/MCore/Source/ReflectionSerializer.cpp
@@ -363,8 +363,8 @@ namespace MCore
     bool ReflectionSerializer::Deserialize(const AZ::TypeId& classTypeId, void* classPtr, const MCore::CommandLine& sourceCommandLine)
     {
         bool someError = false;
-        const uint32 numParameters = sourceCommandLine.GetNumParameters();
-        for (uint32 i = 0; i < numParameters; ++i)
+        const size_t numParameters = sourceCommandLine.GetNumParameters();
+        for (size_t i = 0; i < numParameters; ++i)
         {
             someError |= !DeserializeIntoMember(classTypeId, classPtr, sourceCommandLine.GetParameterName(i).c_str(), sourceCommandLine.GetParameterValue(i).c_str());
         }
diff --git a/Gems/EMotionFX/Code/MCore/Source/StringConversions.cpp b/Gems/EMotionFX/Code/MCore/Source/StringConversions.cpp
index 249ba8e77d..c6b84a9e04 100644
--- a/Gems/EMotionFX/Code/MCore/Source/StringConversions.cpp
+++ b/Gems/EMotionFX/Code/MCore/Source/StringConversions.cpp
@@ -46,7 +46,7 @@ namespace MCore
         AzFramework::StringFunc::TrimWhiteSpace(nameWithoutLastDigits, false /* leading */, true /* trailing */);
 
         // generate the unique name
-        uint32 nameIndex = 0;
+        size_t nameIndex = 0;
         AZStd::string uniqueName = nameWithoutLastDigits + "0";
         while (validationFunction(uniqueName) == false)
         {