diff --git a/src/java/com/threerings/io/FieldMarshaller.java b/src/java/com/threerings/io/FieldMarshaller.java
index bc0362d6a..a6085d253 100644
--- a/src/java/com/threerings/io/FieldMarshaller.java
+++ b/src/java/com/threerings/io/FieldMarshaller.java
@@ -76,7 +76,7 @@ public abstract class FieldMarshaller
             if (reader != null && writer != null) {
                 return new MethodFieldMarshaller(reader, writer);
             } else if (reader == null || writer == null) {
-                log.warning("Class contains one but not both custom field reader and writer" +
+                log.warning("Class contains one but not both custom field reader and writer",
                             "class", field.getDeclaringClass().getName(), "field", field.getName(),
                             "reader", reader, "writer", writer);
                 // fall through to using reflection on the fields...