diff --git a/compiler/fn.v b/compiler/fn.v
index a9a1aa343f..62d45c9cf5 100644
--- a/compiler/fn.v
+++ b/compiler/fn.v
@@ -453,10 +453,9 @@ fn (p mut Parser) check_unused_variables() {
 			p.scanner.line_nr = var.line_nr - 1
 			p.error('`$var.name` declared and not used')
 		}
- 
 		if !var.is_changed && var.is_mut && !p.pref.is_repl && !var.is_arg && !p.pref.translated && var.name != '_' {
 			p.scanner.line_nr = var.line_nr - 1
-			p.error('`$var.name` is declared mutable, but it was never changed') 
+			p.error('`$var.name` is declared as mutable, but it was never changed') 
 		}
 	}
 }
diff --git a/compiler/msvc_win.v b/compiler/msvc_win.v
index 5a2a54fa81..1e00938355 100644
--- a/compiler/msvc_win.v
+++ b/compiler/msvc_win.v
@@ -30,7 +30,7 @@ const (
 
 // Given a root key look for the subkey 'version' and get the path 
 fn find_windows_kit_internal(key RegKey, version string) ?string {
-	mut required_bytes := 0
+	required_bytes := 0 // TODO mut 
 	result := C.RegQueryValueExW(key, version.to_wide(), 0, 0, 0, &required_bytes)
 
 	length := required_bytes / 2
@@ -388,4 +388,5 @@ fn build_thirdparty_obj_file_with_msvc(flag string) {
 
 	res := os.exec('""$msvc.exe_path\\cl.exe" /volatile:ms /Z7 $include_string /c $cfiles /Fo"$obj_path" /D_UNICODE /DUNICODE"')
 	println(res)
-}
\ No newline at end of file
+} 
+