diff --git a/Code/Framework/AzFramework/Platform/Windows/AzFramework/Input/Devices/Keyboard/InputDeviceKeyboard_Windows.cpp b/Code/Framework/AzFramework/Platform/Windows/AzFramework/Input/Devices/Keyboard/InputDeviceKeyboard_Windows.cpp
index f3112ab89c..650dd14a1c 100644
--- a/Code/Framework/AzFramework/Platform/Windows/AzFramework/Input/Devices/Keyboard/InputDeviceKeyboard_Windows.cpp
+++ b/Code/Framework/AzFramework/Platform/Windows/AzFramework/Input/Devices/Keyboard/InputDeviceKeyboard_Windows.cpp
@@ -117,9 +117,11 @@ namespace AzFramework
         , m_hasFocus(false)
         , m_hasTextEntryStarted(false)
     {
+        static const char* s_keyboardCountEnvironmentVarName = "InputDeviceKeyboardInstanceCount";
+        s_instanceCount = AZ::Environment::FindVariable<int>(s_keyboardCountEnvironmentVarName);
         if (!s_instanceCount)
         {
-            s_instanceCount = AZ::Environment::CreateVariable<int>("InputDeviceKeyboardInstanceCount", 1);
+            s_instanceCount = AZ::Environment::CreateVariable<int>(s_keyboardCountEnvironmentVarName, 1);
 
             // Register for raw keyboard input
             RAWINPUTDEVICE rawInputDevice;
diff --git a/Code/Framework/AzFramework/Platform/Windows/AzFramework/Input/Devices/Mouse/InputDeviceMouse_Windows.cpp b/Code/Framework/AzFramework/Platform/Windows/AzFramework/Input/Devices/Mouse/InputDeviceMouse_Windows.cpp
index 464f49d620..d5d313eaab 100644
--- a/Code/Framework/AzFramework/Platform/Windows/AzFramework/Input/Devices/Mouse/InputDeviceMouse_Windows.cpp
+++ b/Code/Framework/AzFramework/Platform/Windows/AzFramework/Input/Devices/Mouse/InputDeviceMouse_Windows.cpp
@@ -138,9 +138,11 @@ namespace AzFramework
     {
         memset(&m_lastClientRect, 0, sizeof(m_lastClientRect));
 
+        static const char* s_mouseCountEnvironmentVarName = "InputDeviceMouseInstanceCount";
+        s_instanceCount = AZ::Environment::FindVariable<int>(s_mouseCountEnvironmentVarName);
         if (!s_instanceCount)
         {
-            s_instanceCount = AZ::Environment::CreateVariable<int>("InputDeviceMouseInstanceCount", 1);
+            s_instanceCount = AZ::Environment::CreateVariable<int>(s_mouseCountEnvironmentVarName, 1);
 
             // Register for raw mouse input
             RAWINPUTDEVICE rawInputDevice;