diff --git a/encode.c b/encode.c
index 2eb9ceb09..84e5b96b1 100644
--- a/encode.c
+++ b/encode.c
@@ -54,7 +54,7 @@ PyImaging_EncoderNew(int contextsize)
     ImagingEncoderObject *encoder;
     void *context;
 
-    if(!PyType_Ready(&ImagingEncoderType) < 0)
+    if(PyType_Ready(&ImagingEncoderType) < 0)
         return NULL;
 
     encoder = PyObject_New(ImagingEncoderObject, &ImagingEncoderType);