--- a/src/misc.c
+++ b/src/misc.c
@@ -19,7 +19,7 @@
   $Id: misc.c,v 1.13 2003/04/06 21:01:49 dspiljar Exp $ */
 
 #define _XOPEN_SOURCE  /* Pull in strptime(3) from time.h */
-#define _BSD_SOURCE    /* Compensate for _XOPEN_SOURCE to pull in strdup(3)
+#define _DEFAULT_SOURCE    /* Compensate for _XOPEN_SOURCE to pull in strdup(3)
                         * from string.h. */
 
 #include <config.h>