diff --git a/img_png.h b/img_png.h
index e809744..18b39d8 100644
--- a/img_png.h
+++ b/img_png.h
@@ -3,10 +3,10 @@
 
 
 struct img_png_chunk {
-  uint32_t length;
-  char chunk_type[4];
   char* chunk_data;
+  uint32_t length;
   uint32_t crc;
+  char chunk_type[4];
 };
 
 uint8_t* img_png_decode (FILE* fp);