diff --git a/src/client.js b/src/client.js
index 70a9f7950..8f03b24bd 100644
--- a/src/client.js
+++ b/src/client.js
@@ -1071,7 +1071,6 @@ function wrapCryptoFuncs(MatrixClient, names) {
 wrapCryptoFuncs(MatrixClient, [
     "resetCrossSigningKeys",
     "getCrossSigningId",
-    "getCrossSigningKey",
     "getStoredCrossSigningForUser",
     "checkUserTrust",
     "checkDeviceTrust",
diff --git a/src/crypto/index.js b/src/crypto/index.js
index 5918bfa07..a81243f75 100644
--- a/src/crypto/index.js
+++ b/src/crypto/index.js
@@ -726,17 +726,6 @@ Crypto.prototype.getCrossSigningId = function(type) {
     return this._crossSigningInfo.getId(type);
 };
 
-/**
- * Gets the user's cross-signing key.
- * @param {string} type The key type ("master", "self_signing", or "user_signing")
- * @param {string} expectedPublicKey The matching public key or undefined to use
- *     the stored public key for the given key type.
- * @returns {Array} An array with [ public key, Olm.PkSigning ]
- */
-Crypto.prototype.getCrossSigningKey = function(type, expectedPublicKey) {
-    return this._crossSigningInfo.getCrossSigningKey(type, expectedPublicKey);
-};
-
 /**
  * Get the cross signing information for a given user.
  *