diff --git a/converter/ibmpc_usb/unimap_plain.c b/converter/ibmpc_usb/unimap_plain.c
index 337fecd2..bfea9a51 100644
--- a/converter/ibmpc_usb/unimap_plain.c
+++ b/converter/ibmpc_usb/unimap_plain.c
@@ -35,11 +35,11 @@ const action_t actionmaps[][UNIMAP_ROWS][UNIMAP_COLS] PROGMEM = {
     ),
     UNIMAP(
               TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
-    GRV,      TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,          TRNS,TRNS,TRNS,         TRNS,TRNS,TRNS,
-    ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, INS, DEL,      TRNS,TRNS,TRNS,    TRNS,TRNS,TRNS,TRNS,
-    CAPS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,PSCR,SLCK,PAUS,UP,  INS,      TRNS,     TRNS,TRNS,TRNS,    TRNS,TRNS,TRNS,TRNS,
-    TRNS,VOLD,VOLU,MUTE,TRNS,TRNS,TRNS,TRNS,HOME,PGUP,LEFT,RGHT,     TRNS,TRNS,                        TRNS,TRNS,TRNS,TRNS,
-    TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,END, PGDN,DOWN,     TRNS,TRNS,          PGUP,         TRNS,TRNS,TRNS,TRNS,
+    GRV,      F13, F14, F15, F16, F17, F18, F19, F20, F21, F22, F23, F24,           EJCT,MSEL,BTLD,         TRNS,TRNS,TRNS,
+    ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, INS, DEL,      MPRV,MPLY,MNXT,    WSCH,WHOM,WBAK,TRNS,
+    CAPS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,PSCR,SLCK,PAUS,UP,  INS,      TRNS,     MRWD,MSTP,MFFD,    WFWD,WSTP,WREF,TRNS,
+    TRNS,VOLD,VOLU,MUTE,TRNS,TRNS,TRNS,TRNS,HOME,PGUP,LEFT,RGHT,     TRNS,TRNS,                        WFAV,MAIL,CALC,TRNS,
+    TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,END, PGDN,DOWN,     TRNS,TRNS,          PGUP,         MYCM,BRTI,BRTD,TRNS,
     TRNS,TRNS,TRNS,TRNS,          TRNS,          TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,     HOME,PGDN,END,          TRNS,TRNS,TRNS
     ),
 };