diff --git a/tests/runner.pm b/tests/runner.pm
index 4b6b12b0b8..a398800946 100644
--- a/tests/runner.pm
+++ b/tests/runner.pm
@@ -241,8 +241,10 @@ sub runner_init {
     }
 
     $controllerw{$thisrunnerid} = $thiscontrollerw;
-    $runnerr = $thisrunnerr;
-    $runnerw = $thisrunnerw;
+    if(!$multiprocess) {
+        $runnerr = $thisrunnerr;
+        $runnerw = $thisrunnerw;
+    }
     $controllerr{$thisrunnerid} = $thiscontrollerr;
 
     return $thisrunnerid;