diff --git a/ballerina/jwt_issuer.bal b/ballerina/jwt_issuer.bal
index 858b8172..4d05cf7e 100644
--- a/ballerina/jwt_issuer.bal
+++ b/ballerina/jwt_issuer.bal
@@ -41,7 +41,7 @@ public type IssuerConfig record {|
 # Represents JWT signature configurations.
 #
 # + algorithm - Cryptographic signing algorithm for JWS
-# + config - KeyStore configurations, private key configurations or shared key configurations
+# + config - KeyStore configurations, private key configurations, `crypto:PrivateKey` or shared key configurations
 public type IssuerSignatureConfig record {|
     SigningAlgorithm algorithm = RS256;
     record {|
diff --git a/ballerina/jwt_validator.bal b/ballerina/jwt_validator.bal
index 76fea9ae..de838441 100644
--- a/ballerina/jwt_validator.bal
+++ b/ballerina/jwt_validator.bal
@@ -48,7 +48,7 @@ public type ValidatorConfig record {
 # Represents JWT signature configurations.
 #
 # + jwksConfig - JWKS configurations
-# + certFile - Public certificate file
+# + certFile - Public certificate file or a `crypto:PublicKey`
 # + trustStoreConfig - JWT TrustStore configurations
 # + secret - HMAC secret configuration
 public type ValidatorSignatureConfig record {|