diff --git a/doc/api/crypto.md b/doc/api/crypto.md
index c88f856ed26..6c52cebae42 100644
--- a/doc/api/crypto.md
+++ b/doc/api/crypto.md
@@ -672,7 +672,7 @@ assert.strictEqual(aliceSecret.toString('hex'), bobSecret.toString('hex'));
 // OK
 ```
 
-### ECDH.convertKey(key, curve[, inputEncoding[, outputEncoding[, format]]])
+### Class Method: ECDH.convertKey(key, curve[, inputEncoding[, outputEncoding[, format]]])
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