diff --git a/keyboards/handwired/tractyl_manuform/tm_sync.c b/keyboards/handwired/tractyl_manuform/tm_sync.c
index 05ad15f2a36..0516f336a79 100644
--- a/keyboards/handwired/tractyl_manuform/tm_sync.c
+++ b/keyboards/handwired/tractyl_manuform/tm_sync.c
@@ -49,7 +49,10 @@ void kb_config_sync_handler(uint8_t initiator2target_buffer_size, const void* in
     }
 }
 
-void keyboard_pre_init_sync(void) { memset(&kb_config, 0, sizeof(kb_config)); }
+void keyboard_pre_init_sync(void) {
+    memset(&kb_config, 0, sizeof(kb_config));
+    memset(&shared_mouse_report, 0, sizeof(shared_mouse_report));
+}
 
 void keyboard_post_init_sync(void) {
     // Register keyboard state sync split transaction
diff --git a/keyboards/handwired/tractyl_manuform/tractyl_manuform.h b/keyboards/handwired/tractyl_manuform/tractyl_manuform.h
index 8e0fae7ceed..6aa40fc18b0 100644
--- a/keyboards/handwired/tractyl_manuform/tractyl_manuform.h
+++ b/keyboards/handwired/tractyl_manuform/tractyl_manuform.h
@@ -43,18 +43,6 @@ typedef struct {
     uint16_t device_cpi;
 } kb_config_data_t;
 
-typedef union {
-    uint16_t raw;
-    struct {
-        int8_t x :8;
-        int8_t y :8;
-    };
-} kb_mouse_report_t;
-
-extern kb_mouse_report_t sync_mouse_report;
-
-void process_mouse(void);
-void process_mouse_user(report_mouse_t* mouse_report, int8_t x, int8_t y);
 void trackball_set_cpi(uint16_t cpi);
 void matrix_init_sub_kb(void);
 void matrix_scan_sub_kb(void);