1 files changed, 5 insertions, 1 deletions
diff --git a/src/examples/rrdJFlot.html b/src/examples/rrdJFlot.html
index 73c6da5..3fb045f 100644
--- a/src/examples/rrdJFlot.html
+++ b/src/examples/rrdJFlot.html
@@ -141,7 +141,11 @@
           if (el!=undefined) {
             rra_pairs[i]=([(last_update+(i-rows+1)*step)*1000.0,el]);
           } else {
-            rra_pairs[i]=null;
+            if ((i>0) && ((i+1)<rows)) { 
+               rra_pairs[i]=null;
+            } else {
+               rra_pairs[i]=0; // first and last must be defined or Flot gets confused
+            }
           }
         }