diff --git a/CRT.c b/CRT.c
index 6f7481480..7912b203b 100644
--- a/CRT.c
+++ b/CRT.c
@@ -1036,6 +1036,8 @@ IGNORE_WCASTQUAL_BEGIN
          sequence[1] = c;
          define_key(sequence, KEY_ALT('A' + (c - 'a')));
       }
+      define_key("\033[I", KEY_FOCUS_IN);
+      define_key("\033[O", KEY_FOCUS_OUT);
 #ifdef HTOP_NETBSD
 IGNORE_WCASTQUAL_END
 #undef define_key
diff --git a/CRT.h b/CRT.h
index 580979865..8740e0963 100644
--- a/CRT.h
+++ b/CRT.h
@@ -168,6 +168,8 @@ void CRT_handleSIGSEGV(int signal) ATTR_NORETURN;
 #define KEY_RECLICK   KEY_F(32)
 #define KEY_SHIFT_TAB KEY_F(33)
 #define KEY_ALT(x)    (KEY_F(64 - 26) + ((x) - 'A'))
+#define KEY_FOCUS_IN  (KEY_MAX + 'I')
+#define KEY_FOCUS_OUT (KEY_MAX + 'O')
 
 extern const char* CRT_degreeSign;
 
diff --git a/ScreenManager.c b/ScreenManager.c
index e7e82e1df..6f3b0598f 100644
--- a/ScreenManager.c
+++ b/ScreenManager.c
@@ -363,6 +363,9 @@ void ScreenManager_run(ScreenManager* this, Panel** lastFocus, int* lastKey, con
          ScreenManager_resize(this);
          continue;
       }
+      case KEY_FOCUS_IN:
+      case KEY_FOCUS_OUT:
+         break;
       case KEY_LEFT:
       case KEY_CTRL('B'):
          if (this->panelCount < 2) {