Index: source/Core/Module.cpp
===================================================================
--- source/Core/Module.cpp
+++ source/Core/Module.cpp
@@ -308,7 +308,7 @@
           // Once we get the object file, update our module with the object
           // file's architecture since it might differ in vendor/os if some
           // parts were unknown.
-          m_arch = m_objfile_sp->GetArchitecture();
+          m_arch.MergeFrom(m_objfile_sp->GetArchitecture());
         } else {
           error.SetErrorString("unable to find suitable object file plug-in");
         }
Index: source/Target/Process.cpp
===================================================================
--- source/Target/Process.cpp
+++ source/Target/Process.cpp
@@ -2635,7 +2635,8 @@
     log->Printf("Process::ReadModuleFromMemory reading %s binary from memory",
                 file_spec.GetPath().c_str());
   }
-  ModuleSP module_sp(new Module(file_spec, ArchSpec()));
+  ModuleSP module_sp(new Module(
+      file_spec, GetTarget().GetExecutableModule()->GetArchitecture()));
   if (module_sp) {
     Status error;
     ObjectFile *objfile = module_sp->GetMemoryObjectFile(