diff --git a/public/javascripts/revision_graph.js b/public/javascripts/revision_graph.js
index 26b59d530..c967e59ee 100644
--- a/public/javascripts/revision_graph.js
+++ b/public/javascripts/revision_graph.js
@@ -26,7 +26,8 @@ for (var k = 0; k < max_space; k++) {
 }
 
 function branchGraph(holder) {
-    var xstep = 20, ystep = 20;
+    var xstep = 20;
+    var ystep = $$('tr.changeset')[0].getHeight();
     var ch, cw;
     cw = max_space * xstep + xstep;
     ch = max_rdmid * ystep + ystep;