diff --git a/AlgebraicDataflowArchitectureModel/src/generators/CodeGeneratorFromDataFlowGraph.java b/AlgebraicDataflowArchitectureModel/src/generators/CodeGeneratorFromDataFlowGraph.java
index 45c2652..2586162 100644
--- a/AlgebraicDataflowArchitectureModel/src/generators/CodeGeneratorFromDataFlowGraph.java
+++ b/AlgebraicDataflowArchitectureModel/src/generators/CodeGeneratorFromDataFlowGraph.java
@@ -1496,7 +1496,7 @@
 							}
 							resExp = ((Term) resExp).getChild(0);
 						}
-						String resourceAccess = resExp.toImplementation(new String[] {null});
+						String resourceAccess = resExp.toImplementation(new String[] {""});
 						// Values of channel parameters.
 						for (Selector selector: ch.getAllSelectors()) {
 							if (selector.getExpression() instanceof Variable) {