Index: /trunk/ippTools/src/dettool.c
===================================================================
--- /trunk/ippTools/src/dettool.c	(revision 14664)
+++ /trunk/ippTools/src/dettool.c	(revision 14665)
@@ -6629,8 +6629,4 @@
         return false;
     }
-    if (!workdir) {
-        psError(PS_ERR_UNKNOWN, true, "-workdir is required");
-        return false;
-    }
 
     psString camera = psMetadataLookupStr(&status, config->args, "-inst");
Index: /trunk/ippTools/src/dettoolConfig.c
===================================================================
--- /trunk/ippTools/src/dettoolConfig.c	(revision 14664)
+++ /trunk/ippTools/src/dettoolConfig.c	(revision 14665)
@@ -982,5 +982,5 @@
             "define filelevel (required)", NULL);
     psMetadataAddStr(register_detrendArgs, PS_LIST_TAIL, "-workdir",  0,
-            "define workdir (required)", NULL);
+            "define workdir", NULL);
     psMetadataAddStr(register_detrendArgs, PS_LIST_TAIL, "-inst",  0,
             "define camera", NULL);