diff --git a/src/xenia/hid/winkey/winkey_input_driver.cc b/src/xenia/hid/winkey/winkey_input_driver.cc
index 8fdb8f6e7..601112c99 100644
--- a/src/xenia/hid/winkey/winkey_input_driver.cc
+++ b/src/xenia/hid/winkey/winkey_input_driver.cc
@@ -25,6 +25,9 @@
 #include "winkey_binding_table.inc"
 #undef XE_HID_WINKEY_BINDING
 
+DEFINE_int32(keyboard_user_index, 0, "Controller port that keyboard emulates",
+             "HID.WinKey");
+
 namespace xe {
 namespace hid {
 namespace winkey {
@@ -101,7 +104,7 @@ X_STATUS WinKeyInputDriver::Setup() { return X_STATUS_SUCCESS; }
 
 X_RESULT WinKeyInputDriver::GetCapabilities(uint32_t user_index, uint32_t flags,
                                             X_INPUT_CAPABILITIES* out_caps) {
-  if (user_index != 0) {
+  if (user_index != cvars::keyboard_user_index) {
     return X_ERROR_DEVICE_NOT_CONNECTED;
   }
 
@@ -123,7 +126,7 @@ X_RESULT WinKeyInputDriver::GetCapabilities(uint32_t user_index, uint32_t flags,
 
 X_RESULT WinKeyInputDriver::GetState(uint32_t user_index,
                                      X_INPUT_STATE* out_state) {
-  if (user_index != 0) {
+  if (user_index != cvars::keyboard_user_index) {
     return X_ERROR_DEVICE_NOT_CONNECTED;
   }
 
@@ -238,7 +241,7 @@ X_RESULT WinKeyInputDriver::GetState(uint32_t user_index,
 
 X_RESULT WinKeyInputDriver::SetState(uint32_t user_index,
                                      X_INPUT_VIBRATION* vibration) {
-  if (user_index != 0) {
+  if (user_index != cvars::keyboard_user_index) {
     return X_ERROR_DEVICE_NOT_CONNECTED;
   }
 
@@ -247,7 +250,7 @@ X_RESULT WinKeyInputDriver::SetState(uint32_t user_index,
 
 X_RESULT WinKeyInputDriver::GetKeystroke(uint32_t user_index, uint32_t flags,
                                          X_INPUT_KEYSTROKE* out_keystroke) {
-  if (user_index != 0) {
+  if (user_index != cvars::keyboard_user_index) {
     return X_ERROR_DEVICE_NOT_CONNECTED;
   }