diff --git a/selfdrive/boardd/panda.cc b/selfdrive/boardd/panda.cc
index f0d7026db7..ef9b498779 100644
--- a/selfdrive/boardd/panda.cc
+++ b/selfdrive/boardd/panda.cc
@@ -279,7 +279,6 @@ const char* Panda::get_serial(){
 
   delete[] serial_buf;
   return NULL;
-
 }
 
 void Panda::set_power_saving(bool power_saving){
diff --git a/selfdrive/common/params.cc b/selfdrive/common/params.cc
index c89144d496..5be7210578 100644
--- a/selfdrive/common/params.cc
+++ b/selfdrive/common/params.cc
@@ -62,7 +62,7 @@ static int fsync_dir(const char* path){
     goto cleanup;
   }
 
- cleanup:
+cleanup:
   int result_close = 0;
   if (fd >= 0){
     result_close = close(fd);
@@ -237,10 +237,6 @@ cleanup:
 }
 
 int Params::delete_db_value(std::string key) {
-  return delete_db_value(key.c_str());
-}
-
-int Params::delete_db_value(const char* key) {
   int lock_fd = -1;
   int result;
   std::string path;
@@ -256,7 +252,7 @@ int Params::delete_db_value(const char* key) {
   }
 
   // Delete value.
-  path = params_path + "/d/" + std::string(key);
+  path = params_path + "/d/" + key;
   result = remove(path.c_str());
   if (result != 0) {
     result = ERR_NO_VALUE;
diff --git a/selfdrive/common/params.h b/selfdrive/common/params.h
index d8c96a8cb2..8da077cfdc 100644
--- a/selfdrive/common/params.h
+++ b/selfdrive/common/params.h
@@ -33,7 +33,6 @@ public:
   // Delete a value from the params database.
   // Inputs are the same as read_db_value, without value and value_sz.
   int delete_db_value(std::string key);
-  int delete_db_value(const char* key);
 
   // Reads a value from the params database, blocking until successful.
   // Inputs are the same as read_db_value.