diff -Naur imlib2-1.4.2-orig/src/modules/loaders/loader_png.c imlib2-1.4.2/src/modules/loaders/loader_png.c
--- imlib2-1.4.2-orig/src/modules/loaders/loader_png.c	2010-01-19 03:37:21.000000000 -0500
+++ imlib2-1.4.2/src/modules/loaders/loader_png.c	2010-01-19 03:38:51.000000000 -0500
@@ -38,7 +38,7 @@
 
         /* if we haven't read the header before, set the header data */
         fread(buf, 1, PNG_BYTES_TO_CHECK, f);
-        if (!png_check_sig(buf, PNG_BYTES_TO_CHECK))
+        if (png_sig_cmp(buf, 0, PNG_BYTES_TO_CHECK))
           {
              fclose(f);
              return 0;