diff --git a/core/src/main/java/com/google/bitcoin/core/Message.java b/core/src/main/java/com/google/bitcoin/core/Message.java
index 025844a7..1cc2e3fa 100644
--- a/core/src/main/java/com/google/bitcoin/core/Message.java
+++ b/core/src/main/java/com/google/bitcoin/core/Message.java
@@ -372,7 +372,7 @@ public abstract class Message implements Serializable {
      * Serializes this message to the provided stream. If you just want the raw bytes use bitcoinSerialize().
      */
     void bitcoinSerializeToStream(OutputStream stream) throws IOException {
-        log.debug("Warning: {} class has not implemented bitcoinSerializeToStream method.  Generating message with no payload", getClass());
+        log.error("Error: {} class has not implemented bitcoinSerializeToStream method.  Generating message with no payload", getClass());
     }
 
     /**