diff --git a/core/hw/naomi/naomi_cart.cpp b/core/hw/naomi/naomi_cart.cpp
index d0070864e..5b526daf2 100644
--- a/core/hw/naomi/naomi_cart.cpp
+++ b/core/hw/naomi/naomi_cart.cpp
@@ -62,7 +62,7 @@ static bool loadBios(const char *filename, Archive *child_archive, Archive *pare
 
 	std::string arch_name(filename);
 	std::string path = get_readonly_data_path(arch_name + ".zip");
-	if (!file_exists(path.c_str()))
+	if (!file_exists(path))
 		path = get_readonly_data_path(arch_name + ".7z");
 	DEBUG_LOG(NAOMI, "Loading BIOS from %s", path.c_str());
 	std::unique_ptr<Archive> bios_archive(OpenArchive(path.c_str()));
diff --git a/core/input/mapping.cpp b/core/input/mapping.cpp
index 07bae18e7..a58a628ca 100644
--- a/core/input/mapping.cpp
+++ b/core/input/mapping.cpp
@@ -206,7 +206,7 @@ std::shared_ptr<InputMapping> InputMapping::LoadMapping(const char *name)
 	if (it != loaded_mappings.end())
 		return it->second;
 
-	std::string path = get_readonly_config_path((std::string("mappings/") + name).c_str());
+	std::string path = get_readonly_config_path(std::string("mappings/") + name);
 	FILE *fp = nowide::fopen(path.c_str(), "r");
 	if (fp == NULL)
 		return NULL;
@@ -225,7 +225,7 @@ bool InputMapping::save(const char *name)
 
 	std::string path = get_writable_config_path("mappings/");
 	make_directory(path);
-	path = get_writable_config_path((std::string("mappings/") + name).c_str());
+	path = get_writable_config_path(std::string("mappings/") + name);
 	FILE *fp = nowide::fopen(path.c_str(), "w");
 	if (fp == NULL)
 	{