diff --git a/google/compression_utils_portable.h b/google/compression_utils_portable.h
--- a/google/compression_utils_portable.h
+++ b/google/compression_utils_portable.h
@@ -13,6 +13,9 @@
  * zlib.
  */
 #if defined(USE_SYSTEM_ZLIB)
+#    if defined(WIN32) && defined(FAR)
+#        undef FAR
+#    endif
 #include <zlib.h>
 /* AOSP build requires relative paths. */
 #else