diff --git a/apps/routerconsole/java/src/net/i2p/router/web/ConfigStatsHandler.java b/apps/routerconsole/java/src/net/i2p/router/web/ConfigStatsHandler.java
index e28486a11..5e4b436d6 100644
--- a/apps/routerconsole/java/src/net/i2p/router/web/ConfigStatsHandler.java
+++ b/apps/routerconsole/java/src/net/i2p/router/web/ConfigStatsHandler.java
@@ -25,6 +25,7 @@ public class ConfigStatsHandler extends FormHandler {
     public ConfigStatsHandler() {
         super();
         _stats = new ArrayList();
+        _graphs = "";
         _explicitFilter = false;
         _isFull = false;
     }