diff --git a/src/devices/machine/i8255.cpp b/src/devices/machine/i8255.cpp
index 8f91652875f..0b6182500b9 100644
--- a/src/devices/machine/i8255.cpp
+++ b/src/devices/machine/i8255.cpp
@@ -66,6 +66,8 @@ enum
 DEFINE_DEVICE_TYPE(I8255, i8255_device, "i8255", "Intel 8255 PPI")
 decltype(I8255) I8255A = I8255;
 
+DEFINE_DEVICE_TYPE(AMS40489_PPI, ams40489_ppi_device, "ams40489_ppi", "Amstrad AMS40489 PPI")
+
 
 //**************************************************************************
 //  INLINE HELPERS