--- a/src/indent.c
+++ b/src/indent.c
@@ -71,9 +71,7 @@
 #include <string.h>
 #include <ctype.h>
 #include <stdlib.h>
-#ifdef HAVE_LOCALE_H
 #include <locale.h>
-#endif
 #include "indent.h"
 #include "backup.h"
 #include "code_io.h"
