diff --git a/libvips/foreign/tiff2vips.c b/libvips/foreign/tiff2vips.c
index 7dd9dddd..d8e43a0b 100644
--- a/libvips/foreign/tiff2vips.c
+++ b/libvips/foreign/tiff2vips.c
@@ -203,8 +203,8 @@
  */
 
 /* 
- */
 #define DEBUG
+ */
 
 #ifdef HAVE_CONFIG_H
 #include <config.h>