diff --git a/names.h b/names.h
index c18b90f..55a8a3f 100644
--- a/names.h
+++ b/names.h
@@ -176,4 +176,9 @@
 #define inflate_fast_chunk_ Cr_z_inflate_fast_chunk_
 #endif
 
+#if defined(CRC32_SIMD_SSE42_PCLMUL)
+/* Symbols added by crc32_simd.c */
+#define crc32_sse42_simd_ Cr_z_crc32_sse42_simd_
+#endif
+
 #endif  /* THIRD_PARTY_ZLIB_NAMES_H_ */