diff --git a/src/plugins/jquery.flot.stack.js b/src/plugins/jquery.flot.stack.js
index bcab864..9281e12 100644
--- a/src/plugins/jquery.flot.stack.js
+++ b/src/plugins/jquery.flot.stack.js
@@ -48,7 +48,7 @@ charts or filled areas).
                     break;
                 }
 
-                if (allseries[i].stack === s.stack) {
+                if (allseries[i].stack === s.stack && allseries[i].data.length) {
                     res = allseries[i];
                 }
             }