diff --git a/common/config.h b/common/config.h
index a3bf4e5..02a7f4a 100644
--- a/common/config.h
+++ b/common/config.h
@@ -46,6 +46,9 @@
 // use permissive hold together with achordion
 #define PERMISSIVE_HOLD
 
+// special handle thumb keys
+#define HOLD_ON_OTHER_KEY_PRESS_PER_KEY
+
 // delay hold/release to not mess up software
 #define TAP_CODE_DELAY 10
 
diff --git a/common/keymap.h b/common/keymap.h
index 0fd14dc..28842a7 100644
--- a/common/keymap.h
+++ b/common/keymap.h
@@ -71,6 +71,20 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
 };
 
+bool get_hold_on_other_key_press(uint16_t keycode, keyrecord_t *record) {
+    switch (keycode) {
+        case LT(_SYM, KC_SCLN):
+        case LT(_NUM, KC_SPC):
+        case LT(_NAV, KC_E):
+        case LT(_FN, KC_MINS):
+            // Immediately select the hold action when another key is pressed.
+            return true;
+        default:
+            // Do not select the hold action when another key is pressed.
+            return false;
+    }
+}
+
 #include "achordion.h"
 
 bool process_record_user(uint16_t keycode, keyrecord_t* record) {