diff --git a/AlgebraicDataflowArchitectureModel/src/application/editor/Editor.java b/AlgebraicDataflowArchitectureModel/src/application/editor/Editor.java
index cb7692b..c81b30b 100644
--- a/AlgebraicDataflowArchitectureModel/src/application/editor/Editor.java
+++ b/AlgebraicDataflowArchitectureModel/src/application/editor/Editor.java
@@ -501,21 +501,26 @@
 
 	public ResourcePath addResourcePath(ResourcePath parentPath, String resName) {
 		ResourcePath resourcePath = null;
-		if (resName.startsWith(Parser.LEFT_CURLY_BRACKET) && resName.endsWith(Parser.RIGHT_CURLY_BRACKET)) {
-			TokenStream stream = new Parser.TokenStream();
-			Parser parser = new Parser(stream);
-			stream.addLine(resName.substring(1, resName.length() - 1));
-			try {
-				Expression exp = parser.parseTerm(stream, getModel());
-				resourcePath = new ResourcePath(parentPath, exp);
-				getModel().addResourcePath(resourcePath);
-			} catch (ExpectedRightBracket e) {
-				e.printStackTrace();
-				return null;
-			}
-		} else {
-			resourcePath = new ResourcePath(parentPath, resName);
+		if (parentPath == null) {
+			resourcePath = new ResourcePath(resName);
 			getModel().addResourcePath(resourcePath);
+		} else {
+			if (resName.startsWith(Parser.LEFT_CURLY_BRACKET) && resName.endsWith(Parser.RIGHT_CURLY_BRACKET)) {
+				TokenStream stream = new Parser.TokenStream();
+				Parser parser = new Parser(stream);
+				stream.addLine(resName.substring(1, resName.length() - 1));
+				try {
+					Expression exp = parser.parseTerm(stream, getModel());
+					resourcePath = new ResourcePath(parentPath, exp);
+					getModel().addResourcePath(resourcePath);
+				} catch (ExpectedRightBracket e) {
+					e.printStackTrace();
+					return null;
+				}
+			} else {
+				resourcePath = new ResourcePath(parentPath, resName);
+				getModel().addResourcePath(resourcePath);
+			}
 		}
 		resetDataFlowGraph();
 		graph.getModel().beginUpdate();