diff --git a/.editorconfig b/.editorconfig
index c7a5f17e..acd10aaf 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -5,6 +5,7 @@ indent_style = space
 indent_size = 2
 tab_width = 8
 end_of_line = lf
+charset = utf-8
 spelling_language = en-US
 
 [*.md]
diff --git a/CMakeLists.txt b/CMakeLists.txt
index a1ee6fd5..bf5e8fd1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,6 +28,12 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 set_property(GLOBAL PROPERTY USE_FOLDERS ON)
 
+if(MSVC)
+  add_compile_options(/source-charset:UTF-8)
+else()
+  add_compile_options(-finput-charset=UTF-8)
+endif()
+
 if(FORCE_COLORED_OUTPUT)
   if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.24)
     set(CMAKE_COLOR_DIAGNOSTICS ON)