diff --git a/kitty/screen.py b/kitty/screen.py
index 4b6129f33..c34166d56 100644
--- a/kitty/screen.py
+++ b/kitty/screen.py
@@ -934,8 +934,17 @@ class Screen(QObject):
                 y -= self.margins.top
             self.write_process_input(ctrl.CSI + "{0};{1}R".format(y, x).encode('ascii'))
 
+    def numeric_keypad_mode(self):
+        pass  # TODO: Implement this
+
+    def application_keypad_mode(self):
+        pass  # TODO: Implement this
+
     def debug(self, *args, **kwargs):
         """Endpoint for unrecognized escape sequences.
 
         By default is a noop.
         """
+        import traceback
+        traceback.print_stack()
+        print('unknown escape code:', args, kwargs)
diff --git a/pyte/escape.py b/pyte/escape.py
index 7c7908f26..472cccea5 100644
--- a/pyte/escape.py
+++ b/pyte/escape.py
@@ -39,6 +39,12 @@ DECSC = b"7"
 #: selection. If none were saved, move cursor to home position.
 DECRC = b"8"
 
+#: Set numeric keypad mode
+DECPNM = b'>'
+
+#: Set application keypad mode
+DECPAM = b'='
+
 # "Sharp" escape sequences.
 # -------------------------
 
diff --git a/pyte/streams.py b/pyte/streams.py
index 3c08d1875..20b20a0fe 100644
--- a/pyte/streams.py
+++ b/pyte/streams.py
@@ -82,6 +82,8 @@ class Stream(object):
         esc.HTS: "set_tab_stop",
         esc.DECSC: "save_cursor",
         esc.DECRC: "restore_cursor",
+        esc.DECPNM: 'numeric_keypad_mode',
+        esc.DECPAM: 'application_keypad_mode',
     }
 
     #: "sharp" escape sequences -- ``ESC # <N>``.