diff --git a/pngwio.c b/pngwio.c
index 7056ba0..9ba6185 100644
--- a/pngwio.c
+++ b/pngwio.c
@@ -17,7 +17,7 @@
 
 #include "png.h"
 #ifdef PNG_WRITE_SUPPORTED
-#include "pngintrn.h"
+#include "pngpriv.h"
 
 /* Write the data to whatever output you are using.  The default routine
    writes to a file pointer.  Note that this routine sometimes gets called
@@ -177,7 +177,7 @@
       png_warning(png_ptr,
          "Attempted to set both read_data_fn and write_data_fn in");
       png_warning(png_ptr,
-         "the same structure.  Resetting read_data_fn to NULL.");
+         "the same structure.  Resetting read_data_fn to NULL");
    }
 }