1 files changed, 5 insertions, 0 deletions
diff --git a/samples/samples.gyp b/samples/samples.gyp
index c972142ed2..97497ee2d9 100644
--- a/samples/samples.gyp
+++ b/samples/samples.gyp
@@ -14,6 +14,11 @@
       '<(DEPTH)/v8',
       '<(DEPTH)/v8/include',
     ],
+    'defines' : [
+      'PNG_PREFIX',
+      'PNGPREFIX_H',
+      'PNG_USE_READ_MACROS',
+    ],
   },
   'targets': [
     {