diff --git a/scheduler/ipp.c b/scheduler/ipp.c
index 7946b9f3c..a22e612fe 100644
--- a/scheduler/ipp.c
+++ b/scheduler/ipp.c
@@ -5226,6 +5226,7 @@ create_local_bg_thread(
       /* Force printer to timeout and be deleted */
       cupsRWLockWrite(&printer->lock);
       printer->state_time = 0;
+      printer->temporary = 1;
       cupsRWUnlock(&printer->lock);
 
       send_ipp_status(con, IPP_STATUS_ERROR_DEVICE, _("Couldn't resolve mDNS URI \"%s\"."), printer->device_uri);
@@ -5246,6 +5247,7 @@ create_local_bg_thread(
     /* Force printer to timeout and be deleted */
     cupsRWLockWrite(&printer->lock);
     printer->state_time = 0;
+    printer->temporary = 1;
     cupsRWUnlock(&printer->lock);
 
     send_ipp_status(con, IPP_STATUS_ERROR_DEVICE, _("Unable to connect to %s:%d: %s"), host, port, cupsGetErrorString());
@@ -5330,6 +5332,7 @@ create_local_bg_thread(
     /* Force printer to timeout and be deleted */
     cupsRWLockWrite(&printer->lock);
     printer->state_time = 0;
+    printer->temporary = 1;
     cupsRWUnlock(&printer->lock);
 
     send_ipp_status(con, IPP_STATUS_ERROR_DEVICE, _("The printer does not provide attributes required for IPP Everywhere."));
@@ -5339,6 +5342,12 @@ create_local_bg_thread(
   // Validate response from printer...
   if (!ippValidateAttributes(response))
   {
+    /* Force printer to timeout and be deleted */
+    cupsRWLockWrite(&printer->lock);
+    printer->state_time = 0;
+    printer->temporary = 1;
+    cupsRWUnlock(&printer->lock);
+
     send_ipp_status(con, IPP_STATUS_ERROR_DEVICE, _("Printer returned invalid data: %s"), cupsGetErrorString());
     goto finish_response;
   }
@@ -5387,6 +5396,7 @@ create_local_bg_thread(
       /* Force printer to timeout and be deleted */
       cupsRWLockWrite(&printer->lock);
       printer->state_time = 0;
+      printer->temporary = 1;
       cupsRWUnlock(&printer->lock);
 
       send_ipp_status(con, IPP_STATUS_ERROR_DEVICE, _("Unable to create PPD for printer: %s"), strerror(errno));
@@ -5420,6 +5430,7 @@ create_local_bg_thread(
     /* Force printer to timeout and be deleted */
     cupsRWLockWrite(&printer->lock);
     printer->state_time = 0;
+    printer->temporary = 1;
     cupsRWUnlock(&printer->lock);
 
     send_ipp_status(con, IPP_STATUS_ERROR_DEVICE, _("Unable to create PPD: %s"), cupsGetErrorString());