diff --git a/py/hexagram/window.pxd b/py/hexagram/window.pxd
index ea88c8c..2734f72 100644
--- a/py/hexagram/window.pxd
+++ b/py/hexagram/window.pxd
@@ -21,12 +21,10 @@ cdef extern from "py3cairo.h":
 
 cdef extern from *:
     """
-    #define ctx_api() (Pycairo_CAPI)
     #define ctx_type() (Pycairo_CAPI->Context_Type)
     """
 
     cdef int import_cairo()
-    cdef void *ctx_api()
     cdef PyTypeObject *ctx_type()
 
 cdef extern from "hexagram/window.h":