diff --git a/src/java/com/threerings/presents/server/ReportingInvoker.java b/src/java/com/threerings/presents/server/ReportingInvoker.java
index fa7f88b62..8085b2915 100644
--- a/src/java/com/threerings/presents/server/ReportingInvoker.java
+++ b/src/java/com/threerings/presents/server/ReportingInvoker.java
@@ -53,7 +53,7 @@ public class ReportingInvoker extends Invoker
         synchronized (this) {
             buf.append("- Max queue size: ").append(_maxQueueSize).append("\n");
             buf.append("- Units executed: ").append(_unitsRun);
-            long runPerSec = (sinceLast == 0) ? 0 : 1000*_unitsRun/sinceLast;
+            long runPerSec = (sinceLast == 0) ? 0 : 1000l*_unitsRun/sinceLast;
             buf.append(" (").append(runPerSec).append("/s)\n");
             if (_currentUnit != null) {
                 String uname = StringUtil.safeToString(_currentUnit);