diff --git a/src/ff.c b/src/ff.c
index c909071..7d91f55 100644
--- a/src/ff.c
+++ b/src/ff.c
@@ -553,6 +553,10 @@ WAD:		{ // Fixes "expression expected" on clang-alpine
 	case 0xff743064: // '\377t0c'
 		scan_idx();
 		return;
+		
+	case 0x587A37FD:
+		report("XZ archive");
+		break;
 
 	default:
 		switch (s & 0xFFFFFF) {