diff --git a/deep_sequencing_unit/source/core-plugins/ngs-sample-overview-graph/1/as/webapps/sample-graph/html/webapp.js b/deep_sequencing_unit/source/core-plugins/ngs-sample-overview-graph/1/as/webapps/sample-graph/html/webapp.js
index bbe4389eea70d8885db82f34553444acd9887db8..c7aac1f9c554a8ac10c4bf8bbfe202b4934f571a 100644
--- a/deep_sequencing_unit/source/core-plugins/ngs-sample-overview-graph/1/as/webapps/sample-graph/html/webapp.js
+++ b/deep_sequencing_unit/source/core-plugins/ngs-sample-overview-graph/1/as/webapps/sample-graph/html/webapp.js
@@ -682,7 +682,7 @@ DagreGraphRenderer.prototype.useLineLinkPath = function(source, target) {
 		return line([[src.x, src.y], [dst.x, dst.y]]); }
 }
 
-var RANK_SEPARATION = 30;
+var RANK_SEPARATION = 50;
 /**
  * Display the sample nodes.
  */