diff --git a/src/main/java/kieker/analysis/trace/graphoutput/DotGraphWriter.java b/src/main/java/kieker/analysis/trace/graphoutput/DotGraphWriter.java
index 118c137fa0cf589382257cc54541cb813abebbb9..a8c7d85e79ab68b63efc24884af5ec22f1a21f69 100644
--- a/src/main/java/kieker/analysis/trace/graphoutput/DotGraphWriter.java
+++ b/src/main/java/kieker/analysis/trace/graphoutput/DotGraphWriter.java
@@ -1,4 +1,4 @@
-package kieker.analysis.stage.graphoutput;
+package kieker.analysis.trace.graphoutput;
 
 import java.io.BufferedWriter;
 import java.io.FileOutputStream;
@@ -32,8 +32,7 @@ public class DotGraphWriter extends AbstractConsumerStage<NamedGraph> {
 		try {
 			writeDotGraphFile(dotGraph);
 		} catch (IOException e) {
-			// TODO Auto-generated catch block
-			e.printStackTrace();
+			throw new IllegalStateException(e);
 		}
 	}
 
diff --git a/src/main/java/kieker/analysis/trace/graphoutput/GraphMLWriter.java b/src/main/java/kieker/analysis/trace/graphoutput/GraphMLWriter.java
index 09f1cfb52ae72b025ae3ff1a16ae7f668de1d7fd..907a1f5d0acd40710fa9d83af8908895b91a41c5 100644
--- a/src/main/java/kieker/analysis/trace/graphoutput/GraphMLWriter.java
+++ b/src/main/java/kieker/analysis/trace/graphoutput/GraphMLWriter.java
@@ -1,4 +1,4 @@
-package kieker.analysis.stage.graphoutput;
+package kieker.analysis.trace.graphoutput;
 
 import java.io.IOException;