diff --git a/briquolo/src/MOGL/MOGL_Image.cpp b/briquolo/src/MOGL/MOGL_Image.cpp
index 7d3159c..b146cb3 100644
--- a/briquolo/src/MOGL/MOGL_Image.cpp
+++ b/briquolo/src/MOGL/MOGL_Image.cpp
@@ -235,7 +235,7 @@ bool MOGL_Image::ChargerPNG(const char * p_NomFichier)
   /* Expand grayscale images to the full 8 bits from 1, 2, or 4 bits/pixel */
   if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
   {
-    png_set_gray_1_2_4_to_8(png_ptr);
+    png_set_expand_gray_1_2_4_to_8(png_ptr);
   }
   
   /* Expand paletted or RGB images with transparency to full alpha channels
diff --git a/briquolo/src/MOGL/MOGL_Image.h b/briquolo/src/MOGL/MOGL_Image.h
index b73ed7e..8817984 100644
--- a/briquolo/src/MOGL/MOGL_Image.h
+++ b/briquolo/src/MOGL/MOGL_Image.h
@@ -25,6 +25,8 @@
 #include "MOGL_Structure.h"
 #include <string>
 
+#define png_infopp_NULL (png_infopp)NULL
+
 using namespace std;
 
 class MOGL_Image