diff --git a/doc/api/crypto.rst b/doc/api/crypto.rst
index 189f440..ef81892 100644
--- a/doc/api/crypto.rst
+++ b/doc/api/crypto.rst
@@ -22,7 +22,7 @@
     used for ECDHE key exchange.
 
 
-.. py:function:: get_elliptic_curve
+.. py:function:: get_elliptic_curve(name)
 
     Return a single curve object selected by name.