diff --git a/bundles/org.dataflowanalysis.converter/src/org/dataflowanalysis/converter/DataFlowDiagramConverter.java b/bundles/org.dataflowanalysis.converter/src/org/dataflowanalysis/converter/DataFlowDiagramConverter.java
index 93eb793..33f4dc0 100644
--- a/bundles/org.dataflowanalysis.converter/src/org/dataflowanalysis/converter/DataFlowDiagramConverter.java
+++ b/bundles/org.dataflowanalysis.converter/src/org/dataflowanalysis/converter/DataFlowDiagramConverter.java
@@ -470,7 +470,7 @@ private void parseBehavior(Node node, Pin outpin, String lines, DataFlowDiagram
                 Matcher matcher = pattern.matcher(behaviorString);
                 if (!matcher.find() || matcher.groupCount() != 2) {
                     logger.error("Invalid behavior string:");
-                    logger.error(behaviorStrings);
+                    logger.error(behaviorString);
                     continue;
                 }
                 String variable = matcher.group(1);
diff --git a/bundles/org.dataflowanalysis.converter/src/org/dataflowanalysis/converter/microsecend/InformationFlow.java b/bundles/org.dataflowanalysis.converter/src/org/dataflowanalysis/converter/microsecend/InformationFlow.java
index 75c83f8..0de1f80 100644
--- a/bundles/org.dataflowanalysis.converter/src/org/dataflowanalysis/converter/microsecend/InformationFlow.java
+++ b/bundles/org.dataflowanalysis.converter/src/org/dataflowanalysis/converter/microsecend/InformationFlow.java
@@ -25,7 +25,7 @@ public record InformationFlow(String sender,
     public InformationFlow {
         stereotypes = stereotypes.stream()
                 .map(stereotype -> stereotype.trim()
-                        .replaceAll("[^a-zA-Z0-9]", ""))
+                        .replaceAll("[^a-zA-Z0-9_]", ""))
                 .collect(Collectors.toList());
     }
 }