diff --git a/src/menu/cpak_handler.c b/src/menu/cpak_handler.c
index 9165f898..bc896a8e 100644
--- a/src/menu/cpak_handler.c
+++ b/src/menu/cpak_handler.c
@@ -61,7 +61,17 @@ cpak_err_t cpak_overwrite_contents_from_file(char *path, uint8_t port) {
     return CONTROLLER_PAK_ERR_IO;
 }
 
-cpak_err_t cpak_attempt_repair() {
-    // TODO: implementation.
-    return CONTROLLER_PAK_ERR_IO;
+cpak_err_t cpak_attempt_repair(uint8_t port, bool allow_formatting) {
+    int result = validate_mempak(port);
+    if (result == CONTROLLER_PAK_OK) {
+        return CONTROLLER_PAK_OK;
+    }
+
+    // TODO: repair implementation.
+
+    // last resort would be to format it completely!
+    if (result == -3 && allow_formatting) {
+        result = format_mempak(port);
+    }
+    return result;
 }
diff --git a/src/menu/cpak_handler.h b/src/menu/cpak_handler.h
index a30aef28..82c36607 100644
--- a/src/menu/cpak_handler.h
+++ b/src/menu/cpak_handler.h
@@ -28,6 +28,6 @@ typedef struct {
 cpak_err_t cpak_info_load(uint8_t port, cpak_info_t *cpak_info);
 int cpak_clone_contents_to_file(char *path, uint8_t port);
 cpak_err_t cpak_overwrite_contents_from_file(char *path, uint8_t port);
-cpak_err_t cpak_attempt_repair();
+cpak_err_t cpak_attempt_repair(uint8_t port, bool allow_formatting);
 
 #endif