diff --git a/src/mame/drivers/amstrad.cpp b/src/mame/drivers/amstrad.cpp
index bcd466cb092..4cc247e17ea 100644
--- a/src/mame/drivers/amstrad.cpp
+++ b/src/mame/drivers/amstrad.cpp
@@ -235,7 +235,7 @@ static INPUT_PORTS_START( amstrad_keyboard )
 	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD)                                    PORT_CODE(KEYCODE_Q)          PORT_CHAR('q') PORT_CHAR('Q')
 	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Tab")                   PORT_CODE(KEYCODE_TAB)        PORT_CHAR(9)
 	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD)                                    PORT_CODE(KEYCODE_A)          PORT_CHAR('a') PORT_CHAR('A')
-	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Caps Lock")             PORT_CODE(KEYCODE_CAPSLOCK)   PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) PORT_TOGGLE
+	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Caps Lock")             PORT_CODE(KEYCODE_CAPSLOCK)   PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) // No physical toggle
 	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD)                                    PORT_CODE(KEYCODE_Z)          PORT_CHAR('z') PORT_CHAR('Z')
 
 	PORT_START("kbrow.9")