diff --git a/src/mod/applications/mod_dptools/mod_dptools.c b/src/mod/applications/mod_dptools/mod_dptools.c
index 176b38074c..48f992d758 100644
--- a/src/mod/applications/mod_dptools/mod_dptools.c
+++ b/src/mod/applications/mod_dptools/mod_dptools.c
@@ -2744,7 +2744,6 @@ SWITCH_STANDARD_APP(att_xfer_function)
 	switch_threadattr_create(&thd_attr, pool);
 	switch_threadattr_detach_set(thd_attr, 1);
 	switch_threadattr_stacksize_set(thd_attr, SWITCH_THREAD_STACKSIZE);
-	switch_threadattr_detach_set(thd_attr, 1);
 
 	att = switch_core_session_alloc(session, sizeof(*att));
 	att->running = -1;