diff --git a/Source/Core/Common/FileUtil.cpp b/Source/Core/Common/FileUtil.cpp
index 826d430b62..01f4417e1d 100644
--- a/Source/Core/Common/FileUtil.cpp
+++ b/Source/Core/Common/FileUtil.cpp
@@ -887,7 +887,7 @@ std::string GetThemeDir(const std::string& theme_name)
   return GetSysDirectory() + THEMES_DIR "/" DEFAULT_THEME_DIR "/";
 }
 
-bool WriteStringToFile(const std::string& filename, const std::string& str)
+bool WriteStringToFile(const std::string& filename, std::string_view str)
 {
   return File::IOFile(filename, "wb").WriteBytes(str.data(), str.size());
 }
diff --git a/Source/Core/Common/FileUtil.h b/Source/Core/Common/FileUtil.h
index cccb28e218..57e645c285 100644
--- a/Source/Core/Common/FileUtil.h
+++ b/Source/Core/Common/FileUtil.h
@@ -7,6 +7,7 @@
 #include <cstddef>
 #include <fstream>
 #include <string>
+#include <string_view>
 #include <vector>
 
 #include <sys/stat.h>
@@ -198,7 +199,7 @@ std::string GetBundleDirectory();
 std::string GetExePath();
 std::string GetExeDirectory();
 
-bool WriteStringToFile(const std::string& filename, const std::string& str);
+bool WriteStringToFile(const std::string& filename, std::string_view str);
 bool ReadFileToString(const std::string& filename, std::string& str);
 
 // To deal with Windows being dumb at unicode: