diff --git a/core/src/main/java/com/google/bitcoin/protocols/payments/PaymentRequestException.java b/core/src/main/java/com/google/bitcoin/protocols/payments/PaymentRequestException.java
index 0fefa003..45c885c6 100644
--- a/core/src/main/java/com/google/bitcoin/protocols/payments/PaymentRequestException.java
+++ b/core/src/main/java/com/google/bitcoin/protocols/payments/PaymentRequestException.java
@@ -45,6 +45,10 @@ public class PaymentRequestException extends Exception {
         public InvalidPaymentURL(Exception e) {
             super(e);
         }
+
+        public InvalidPaymentURL(String msg) {
+            super(msg);
+        }
     }
 
     public static class InvalidOutputs extends PaymentRequestException {