diff --git a/src/main/java/GraphMLFileWriter.java b/src/main/java/GraphMLFileWriter.java
index 89de8a8..18e16b0 100644
--- a/src/main/java/GraphMLFileWriter.java
+++ b/src/main/java/GraphMLFileWriter.java
@@ -59,6 +59,7 @@ public class GraphMLFileWriter {
         attributes.put("read depth", DefaultAttribute.createAttribute(data.getReadDepth().toString()));
         attributes.put("read error rate", DefaultAttribute.createAttribute(data.getReadErrorRate().toString()));
         attributes.put("error collision rate", DefaultAttribute.createAttribute(data.getErrorCollisionRate().toString()));
+        attributes.put("real sequence collision rate", DefaultAttribute.createAttribute(data.getRealSequenceCollisionRate()));
         return attributes;
     }