diff --git a/doc/vigem/README.md b/doc/vigem/README.md
index 6df623e..6684667 100644
--- a/doc/vigem/README.md
+++ b/doc/vigem/README.md
@@ -9,5 +9,5 @@ References:
 * [ViGEmClient](https://github.com/ViGEm/ViGEmClient)
 
 Available ViGEm client implementations:
-* [vigem-iidxio](vigem-iidxio.md): Exposes inputs provided by the iidxio API as two XBOX gamepads
+* [vigem-iidxio](vigem-iidxio.md): Exposes inputs provided by the iidxio API as three XBOX gamepads
 * [vigem-sdvxio](vigem-sdvxio.md): Exposes inputs provided by the sdvxio API as one XBOX gamepad
\ No newline at end of file
diff --git a/doc/vigem/vigem-iidxio.md b/doc/vigem/vigem-iidxio.md
index e132829..f25d8c9 100644
--- a/doc/vigem/vigem-iidxio.md
+++ b/doc/vigem/vigem-iidxio.md
@@ -4,6 +4,8 @@ or `iidxio-bio2.dll`, to be exposed as three XBOX 360 game controller on Windows
 
 Thus, it allows you to use a real cabinet with all its IO with *any* game that supports xinput.
 
+Note: This will not work with games that require Direct Input (dinput), e.g. IIDX Infinitas.
+
 ## Setup
 * Install [ViGEmBus](https://github.com/ViGEm/ViGEmBus/releases)
   * Source for compiled binaries: [bemanitools-supplement](https://dev.s-ul.eu/djhackers/bemanitools-supplement)