Index: xymongen/loaddata.c
===================================================================
--- xymongen/loaddata.c	(revision 7189)
+++ xymongen/loaddata.c	(working copy)
@@ -509,7 +509,7 @@
 			char *bcmd;
 
 			bcmd = (char *)malloc(1024 + (filter ? strlen(filter) : 0));
-			sprintf(bcmd, "xymondboard fields=hostname,testname,color,flags,lastchange,logtime,validtime,acktime,disabletime,sender,cookie,line1,acklist %s", filter);
+			sprintf(bcmd, "xymondboard fields=hostname,testname,color,flags,lastchange,logtime,validtime,acktime,disabletime,sender,cookie,line1,acklist %s", (filter ? filter) : "");
 			xymondresult = sendmessage(bcmd, NULL, XYMON_TIMEOUT, sres);
 			board = getsendreturnstr(sres, 1);
 			xfree(bcmd);