diff --git a/AlgebraicDataflowArchitectureModel/src/algorithm/DataStorageNecessity.java b/AlgebraicDataflowArchitectureModel/src/algorithm/DataStorageNecessity.java
index 0625664..c9aac3e 100644
--- a/AlgebraicDataflowArchitectureModel/src/algorithm/DataStorageNecessity.java
+++ b/AlgebraicDataflowArchitectureModel/src/algorithm/DataStorageNecessity.java
@@ -16,7 +16,7 @@
 				boolean flag = false;
 				for (Position pos : curexp.getVariables().keySet()) {
 					System.out.println(curexp);
-					System.out.println(nextexp.getVariables().containsKey(pos));
+					System.out.println(curexp.getVariables().containsKey(pos));
 					System.out.println(nextexp);
 					if (nextexp.contains(curexp.getVariables().get(pos))) {
 						flag = true;