diff --git a/bindings/py3devil1.py b/bindings/py3devil1.py
index 8abc301..fea35be 100755
--- a/bindings/py3devil1.py
+++ b/bindings/py3devil1.py
@@ -236,7 +236,7 @@ if __name__ == "__main__":
 #            geoheader = ctypes.cast(data, ctypes.POINTER(Header))
             gh = ctypes.pointer(geoheader)
             devil1geo.getheader(ctypes.byref(gh), data)
-            devil1geo.printheader(geoheader)
+            devil1geo.printheader(gh)
             meshheader = MeshHeader()
             mh = ctypes.pointer(meshheader)
             devil1geo.getmeshheader(ctypes.byref(mh), 1, data)