diff -up hplip-2.8.12/prnt/hpijs/hpijs.cpp.segfault hplip-2.8.12/prnt/hpijs/hpijs.cpp
--- hplip-2.8.12/prnt/hpijs/hpijs.cpp.segfault	2009-01-13 15:11:55.000000000 +0000
+++ hplip-2.8.12/prnt/hpijs/hpijs.cpp	2009-01-13 15:13:49.000000000 +0000
@@ -231,8 +231,14 @@ int hpijs_set_cb (void *set_cb_data, Ijs
 		// call dbus here
 		const char    *user_name = " ";
 		const char    *title     = " ";
+		char *device_uri = getenv ("DEVICE_URI");
+		char *printer = getenv("PRINTER");
 		int     job_id = 0;
-                SendDbusMessage (getenv ("DEVICE_URI"), getenv("PRINTER"),
+		if (!device_uri)
+		    device_uri = "";
+		if (!printer)
+		    printer = "";
+                SendDbusMessage (device_uri, printer,
 	     	                 EVENT_PRINT_FAILED_MISSING_PLUGIN,
 				 user_name, job_id, title);
                 bug("unable to set device=%s, err=%d\n", svalue, r);