diff --git a/src/Tools/padder/meshjob/impl/SPADDERPluginTester_i.cxx b/src/Tools/padder/meshjob/impl/SPADDERPluginTester_i.cxx
index 328c42022..83565540c 100644
--- a/src/Tools/padder/meshjob/impl/SPADDERPluginTester_i.cxx
+++ b/src/Tools/padder/meshjob/impl/SPADDERPluginTester_i.cxx
@@ -100,6 +100,7 @@ bool SPADDERPluginTester_i::testkernel()
   beginService("SPADDERPluginTester_i::testplugin");
 
   Engines::SalomeLauncher_ptr salomeLauncher = KERNEL::getSalomeLauncher();
+  salomeLauncher = NULL;
 
   endService("SPADDERPluginTester_i::testplugin");
   return true;