diff --git a/cmake/extensions.cmake b/cmake/extensions.cmake
index 7b261df4e16..34dc2aceec0 100644
--- a/cmake/extensions.cmake
+++ b/cmake/extensions.cmake
@@ -638,6 +638,7 @@ function(import_kconfig config_file)
     ${config_file}
     DOT_CONFIG_LIST
     REGEX "^CONFIG_"
+    ENCODING "UTF-8"
   )
 
   foreach (CONFIG ${DOT_CONFIG_LIST})
diff --git a/misc/generated/CMakeLists.txt b/misc/generated/CMakeLists.txt
index 7fc7115d169..ecd90b69865 100644
--- a/misc/generated/CMakeLists.txt
+++ b/misc/generated/CMakeLists.txt
@@ -4,6 +4,7 @@ file(STRINGS
   ${AUTOCONF_H}
   CONFIG_LIST
   REGEX "^#define CONFIG_"
+  ENCODING "UTF-8"
   )
 foreach (CONFIG ${CONFIG_LIST})
   string(REGEX REPLACE "#define (CONFIG_[A-Z|_|0-9]*) (.*)" "GEN_ABSOLUTE_SYM(\\1, \\2)" CONFIG ${CONFIG})