diff --git a/pycrate_media/PNG.py b/pycrate_media/PNG.py
index 8572625..b0692ef 100644
--- a/pycrate_media/PNG.py
+++ b/pycrate_media/PNG.py
@@ -60,7 +60,7 @@ class IHDR(Envelope):
       Uint8('depth', desc='bit depth'),
       Uint8('color', desc='color type', dic=_Colour_dict),
       Uint8('comp', desc='compression method', dic=_CompMeth_dict),
-      Uint8('filter', desc='filter method', dic=_InterMeth_dict),
+      Uint8('filter', desc='filter method', dic=_FilterMeth_dict),
       Uint8('interlace', desc='interlace method', dic=_InterMeth_dict)
       )