diff --git a/src/main/java/istlab/KisoJikken/JTAConsole.java b/src/main/java/istlab/KisoJikken/JTAConsole.java
index 81837ee..add2117 100644
--- a/src/main/java/istlab/KisoJikken/JTAConsole.java
+++ b/src/main/java/istlab/KisoJikken/JTAConsole.java
@@ -203,7 +203,7 @@
         }
 
         if (e.isControlDown() || e.isAltDown() || e.isAltGraphDown() || e.isMetaDown()) {
-            if (e.getKeyCode() == 67 || e.getKeyCode() == 87) { // CTRL+C or Alt-W
+            if (e.getKeyCode() == 67 || e.getKeyCode() == 68 || e.getKeyCode() == 87) { // CTRL+C or CTRL+D or Alt-W
                 windowClosing(null);
                 frame.dispose();
             }