diff --git a/keyboards/bpiphany/pegasushoof/2015/2015.c b/keyboards/bpiphany/pegasushoof/2015/2015.c
index 401dc2633b7..74ec66a298e 100644
--- a/keyboards/bpiphany/pegasushoof/2015/2015.c
+++ b/keyboards/bpiphany/pegasushoof/2015/2015.c
@@ -23,3 +23,26 @@ extern inline void ph_caps_led_off(void);
 
 extern inline void ph_sclk_led_on(void);
 extern inline void ph_sclk_led_off(void);
+
+__attribute__ ((weak))
+void matrix_init_user(void) {
+};
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+}
+
+__attribute__ ((weak))
+bool process_action_user(keyrecord_t *record) {
+    return true;
+}
+
+__attribute__ ((weak))
+void led_set_user(uint8_t usb_led) {
+}
+
+void matrix_init_kb(void) {
+}
+
+void matrix_scan_kb(void) {
+}