diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index e0eedff..be97caf 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -417,7 +417,7 @@
 		do_input(alias, id->sndbit, 0, SND_MAX);
 	sprintf(alias + strlen(alias), "f*");
 	if (id->flags&INPUT_DEVICE_ID_MATCH_FFBIT)
-		do_input(alias, id->ffbit, 0, SND_MAX);
+		do_input(alias, id->ffbit, 0, FF_MAX);
 	sprintf(alias + strlen(alias), "w*");
 	if (id->flags&INPUT_DEVICE_ID_MATCH_SWBIT)
 		do_input(alias, id->swbit, 0, SW_MAX);