diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 2370863..25e5cb0 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -210,8 +210,8 @@
 				range_lo < 0x9 ? "[%X-9" : "[%X",
 				range_lo);
 			sprintf(alias + strlen(alias),
-				range_hi > 0xA ? "a-%X]" : "%X]",
-				range_lo);
+				range_hi > 0xA ? "A-%X]" : "%X]",
+				range_hi);
 		}
 	}
 	if (bcdDevice_initial_digits < (sizeof(bcdDevice_lo) * 2 - 1))