diff --git a/src/main/java/kieker/analysis/graph/export/dot/DotElementExporter.java b/src/main/java/kieker/analysis/graph/export/dot/DotElementExporter.java
index 6355b474dc9a601b633363734fbd7266a7495158..32c26a26ded257cc6357dc9f05381966ce3b6222 100644
--- a/src/main/java/kieker/analysis/graph/export/dot/DotElementExporter.java
+++ b/src/main/java/kieker/analysis/graph/export/dot/DotElementExporter.java
@@ -29,7 +29,7 @@ class DotElementExporter extends AbstractTransformer<Void> {
 			if (vertex.hasChildGraph()) {
 				Graph childGraph = vertex.getChildGraph();
 
-				dotGraphWriter.addClusterStart(childGraph.getName());
+				dotGraphWriter.addClusterStart(vertex.getId().toString());
 
 				Map<String, String> attributes = transformProperties(vertex);
 				attributes.putAll(transformProperties(childGraph));