diff --git a/AlgebraicDataflowArchitectureModel/src/generators/CodeGeneratorFromControlFlowGraph.java b/AlgebraicDataflowArchitectureModel/src/generators/CodeGeneratorFromControlFlowGraph.java
index 16c59be..bfdc872 100644
--- a/AlgebraicDataflowArchitectureModel/src/generators/CodeGeneratorFromControlFlowGraph.java
+++ b/AlgebraicDataflowArchitectureModel/src/generators/CodeGeneratorFromControlFlowGraph.java
@@ -518,7 +518,7 @@
 				component.addMethod(updateOrInput);
 			}
 			
-			if (node.getOutdegree() == 1 && resourcesToReturn != null 
+			if (node.getOutdegree() == 1 && resourcesToReturn != null && resourcesToReturn.size() > 0
 					&& resourcesToReturn.equals(dataFlowInform.get(node.getOutEdges().iterator().next()).get(PushPullValue.PULL))) {			
 				// Directly returns the returned value.
 				Edge outEdge = node.getOutEdges().iterator().next();