diff --git a/lib/xz/xz_crc32.c b/lib/xz/xz_crc32.c
index 5627b00fc..88a2c35e1 100755
--- a/lib/xz/xz_crc32.c
+++ b/lib/xz/xz_crc32.c
@@ -29,7 +29,7 @@ STATIC_RW_DATA uint32_t xz_crc32_table[256];
 
 XZ_EXTERN void xz_crc32_init(void)
 {
-	const uint32_t poly = 0xEDB88320;
+	const uint32_t poly = CRC32_POLY_LE;
 
 	uint32_t i;
 	uint32_t j;
diff --git a/lib/xz/xz_private.h b/lib/xz/xz_private.h
index 482b90f36..09360ebb5 100755
--- a/lib/xz/xz_private.h
+++ b/lib/xz/xz_private.h
@@ -102,6 +102,10 @@
 #	endif
 #endif
 
+#ifndef CRC32_POLY_LE
+#define CRC32_POLY_LE 0xedb88320
+#endif
+
 /*
  * Allocate memory for LZMA2 decoder. xz_dec_lzma2_reset() must be used
  * before calling xz_dec_lzma2_run().