diff --git a/ext/flac/flac_compat.h b/ext/flac/flac_compat.h
index 0635925271..4de2b6d2b8 100644
--- a/ext/flac/flac_compat.h
+++ b/ext/flac/flac_compat.h
@@ -13,7 +13,7 @@
 /* FIXME when there's a autoconf symbol */
 #ifndef FLAC_VERSION
 
-#ifndef FLAC__STREAM_ENCODER_WRITE_OK
+#ifdef FLAC__STREAM_ENCODER_WRITE_ERROR /* added in 1.0.4 */
 #define FLAC_VERSION 0x010004
 #else
 #ifdef FLAC__REFERENCE_CODEC_MAX_BITS_PER_SAMPLE