diff --git a/lldb/source/Plugins/Process/mach-core/ProcessMachCore.cpp b/lldb/source/Plugins/Process/mach-core/ProcessMachCore.cpp
--- a/lldb/source/Plugins/Process/mach-core/ProcessMachCore.cpp
+++ b/lldb/source/Plugins/Process/mach-core/ProcessMachCore.cpp
@@ -327,9 +327,11 @@
   // corefile
   core_objfile->LoadCoreFileImages(*this);
 
-  // LoadCoreFileImges may have set the dynamic loader; if we now have
-  // a dynamic loader, save its name so we don't un-set it later.
-  if (GetDynamicLoader())
+  // LoadCoreFileImges may have set the dynamic loader, e.g. in
+  // PlatformDarwinKernel::LoadPlatformBinaryAndSetup().
+  // If we now have a dynamic loader, save its name so we don't 
+  // un-set it later.
+  if (m_dyld_up.get())
     m_dyld_plugin_name = GetDynamicLoader()->GetPluginName();
 }