diff --git a/src/shared/calendarspec.c b/src/shared/calendarspec.c
index 19ae8a3233..2fde3e107e 100644
--- a/src/shared/calendarspec.c
+++ b/src/shared/calendarspec.c
@@ -24,7 +24,7 @@
 
 #include "calendarspec.h"
 
-#define BITS_WEEKDAYS	127
+#define BITS_WEEKDAYS   127
 
 static void free_chain(CalendarComponent *c) {
         CalendarComponent *n;