diff --git a/src/include/86box/resource.h b/src/include/86box/resource.h
index 7d2233ea6..7168ce5ba 100644
--- a/src/include/86box/resource.h
+++ b/src/include/86box/resource.h
@@ -164,6 +164,7 @@
 #define IDC_CONFIGURE_GUS	1049
 #define IDC_COMBO_MIDI_IN	1050
 #define IDC_CONFIGURE_CMS	1051
+#define IDC_CONFIGURE_SSI	1052
 
 #define IDC_COMBO_NET_TYPE	1060	/* network config */
 #define IDC_COMBO_PCAP		1061