diff --git a/doc/api/dgram.md b/doc/api/dgram.md
index 290e2ebff5..980537640f 100644
--- a/doc/api/dgram.md
+++ b/doc/api/dgram.md
@@ -226,14 +226,14 @@ never have reason to call this.
 If `multicastInterface` is not specified, the operating system will attempt to
 drop membership on all valid interfaces.
 
-### socket.getRecvBufferSize(size)
+### socket.getRecvBufferSize()
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 * Returns {number} the `SO_RCVBUF` socket receive buffer size in bytes.
 
-### socket.getSendBufferSize(size)
+### socket.getSendBufferSize()
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