diff --git a/ext/flac/flac_compat.h b/ext/flac/flac_compat.h
index 9e7f38025b..0635925271 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
 
-#ifdef FLAC__STREAM_ENCODER_OK
+#ifndef FLAC__STREAM_ENCODER_WRITE_OK
 #define FLAC_VERSION 0x010004
 #else
 #ifdef FLAC__REFERENCE_CODEC_MAX_BITS_PER_SAMPLE