diff --git a/apps/routerconsole/java/src/net/i2p/router/web/StatSummarizer.java b/apps/routerconsole/java/src/net/i2p/router/web/StatSummarizer.java
index 0eee091c0..b28964241 100644
--- a/apps/routerconsole/java/src/net/i2p/router/web/StatSummarizer.java
+++ b/apps/routerconsole/java/src/net/i2p/router/web/StatSummarizer.java
@@ -334,6 +334,8 @@ public class StatSummarizer implements Runnable {
             //System.out.println("*****************\nData: \n" + _listener.getData().dump());
             def.setWidth(width);
             def.setHeight(height);
+            def.setImageFormat("PNG");
+            def.setLazy(true);
 
             RrdGraph graph = new RrdGraph(def);
             //System.out.println("Graph created");
diff --git a/apps/routerconsole/java/src/net/i2p/router/web/SummaryRenderer.java b/apps/routerconsole/java/src/net/i2p/router/web/SummaryRenderer.java
index 2ee9a2a94..02b4e51d3 100644
--- a/apps/routerconsole/java/src/net/i2p/router/web/SummaryRenderer.java
+++ b/apps/routerconsole/java/src/net/i2p/router/web/SummaryRenderer.java
@@ -164,6 +164,8 @@ class SummaryRenderer {
             //System.out.println("*****************\nData: \n" + _listener.getData().dump());
             def.setWidth(width);
             def.setHeight(height);
+            def.setImageFormat("PNG");
+            def.setLazy(true);
 
             RrdGraph graph = new RrdGraph(def);
             int totalWidth = graph.getRrdGraphInfo().getWidth();
diff --git a/router/java/src/net/i2p/router/RouterVersion.java b/router/java/src/net/i2p/router/RouterVersion.java
index f6e6df3a5..4e28a2c8d 100644
--- a/router/java/src/net/i2p/router/RouterVersion.java
+++ b/router/java/src/net/i2p/router/RouterVersion.java
@@ -18,7 +18,7 @@ public class RouterVersion {
     /** deprecated */
     public final static String ID = "Monotone";
     public final static String VERSION = CoreVersion.VERSION;
-    public final static long BUILD = 4;
+    public final static long BUILD = 5;
 
     /** for example "-test" */
     public final static String EXTRA = "";