diff --git a/src/test_libFLAC/metadata.c b/src/test_libFLAC/metadata.c
index 115e6939..32c038f3 100644
--- a/src/test_libFLAC/metadata.c
+++ b/src/test_libFLAC/metadata.c
@@ -19,8 +19,8 @@
 #include "metadata.h"
 #include <stdio.h>
 
-extern int test_metadata_object();
-extern int test_metadata_file_manipulation();
+extern FLAC__bool test_metadata_object();
+extern FLAC__bool test_metadata_file_manipulation();
 
 FLAC__bool test_metadata()
 {