diff --git a/lib/idn_win32.c b/lib/idn_win32.c
index ae4a6832ea..8b5baf73b3 100644
--- a/lib/idn_win32.c
+++ b/lib/idn_win32.c
@@ -31,7 +31,7 @@
 #include "curl_multibyte.h"
 #include "curl_memory.h"
 #include "warnless.h"
-  
+
   /* The last #include file should be: */
 #include "memdebug.h"