diff --git a/src/main/java/dev/sillyangel/calc/utils.java b/src/main/java/dev/sillyangel/calc/utils.java
index a800295..e3de638 100644
--- a/src/main/java/dev/sillyangel/calc/utils.java
+++ b/src/main/java/dev/sillyangel/calc/utils.java
@@ -204,7 +204,7 @@ public class utils {
 		historyDialog.setLocationRelativeTo(this.ci);
 		historyDialog.setLayout(new BorderLayout(10, 10));
 
-		List<String> historyList = history.getCalculationHistory();
+		List<String> historyList = ci.history.getCalculationHistory();
 
 		if (historyList.isEmpty()) {
 			JLabel emptyLabel = new JLabel("No calculation history yet", SwingConstants.CENTER);