diff --git a/src/common/input/Keyboard.test.ts b/src/common/input/Keyboard.test.ts
index a304923e8f..0bb0e24c15 100644
--- a/src/common/input/Keyboard.test.ts
+++ b/src/common/input/Keyboard.test.ts
@@ -86,6 +86,12 @@ describe('Keyboard', () => {
     it('should return \\x1b[3;3~ for alt+delete', () => {
       assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 46 }).key, '\x1b[3;3~');
     });
+    it('should return \\x1b\\r for alt+enter', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 13 }).key, '\x1b\r');
+    });
+    it('should return \\x1b\\x1b for alt+esc', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 27 }).key, '\x1b\x1b');
+    });
     it('should return \\x1b[5D for ctrl+left', () => {
       assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, keyCode: 37 }).key, '\x1b[1;5D'); // CSI 5 D
     });
@@ -141,6 +147,10 @@ describe('Keyboard', () => {
       it('should return \\x1ba for alt+a', () => {
         assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 65 }, { isMac: true, macOptionIsMeta: true }).key, '\x1ba');
       });
+
+      it('should return \\x1b\\x1b for alt+enter', () => {
+        assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 13 }, { isMac: true, macOptionIsMeta: true }).key, '\x1b\r');
+      });
     });
 
     it('should return \\x1b[5A for alt+up', () => {
diff --git a/src/common/input/Keyboard.ts b/src/common/input/Keyboard.ts
index 1bf378c171..fdb777b428 100644
--- a/src/common/input/Keyboard.ts
+++ b/src/common/input/Keyboard.ts
@@ -103,12 +103,15 @@ export function evaluateKeyboardEvent(
       break;
     case 13:
       // return/enter
-      result.key = C0.CR;
+      result.key = ev.altKey ? C0.ESC + C0.CR : C0.CR;
       result.cancel = true;
       break;
     case 27:
       // escape
       result.key = C0.ESC;
+      if (ev.altKey) {
+        result.key = C0.ESC + C0.ESC;
+      }
       result.cancel = true;
       break;
     case 37: