diff --git a/openid-connect-server/src/main/java/org/mitre/openid/connect/ConnectOAuth2RequestFactory.java b/openid-connect-server/src/main/java/org/mitre/openid/connect/ConnectOAuth2RequestFactory.java
index 41b889c65..ed5ba23ac 100644
--- a/openid-connect-server/src/main/java/org/mitre/openid/connect/ConnectOAuth2RequestFactory.java
+++ b/openid-connect-server/src/main/java/org/mitre/openid/connect/ConnectOAuth2RequestFactory.java
@@ -330,7 +330,7 @@ public class ConnectOAuth2RequestFactory extends DefaultOAuth2RequestFactory {
     	
     	try {
     		
-    		JWK jwk = new OctetSequenceKey(new Base64URL(client.getClientSecret()), Use.SIGNATURE, null, client.getClientId(), null, null, null);
+    		JWK jwk = new OctetSequenceKey(Base64URL.encode(client.getClientSecret()), Use.SIGNATURE, null, client.getClientId(), null, null, null);
     		Map<String, JWK> keys = ImmutableMap.of(client.getClientId(), jwk);
 	        JwtSigningAndValidationService service = new DefaultJwtSigningAndValidationService(keys);