diff --git a/lldb/source/Interpreter/CommandInterpreter.cpp b/lldb/source/Interpreter/CommandInterpreter.cpp
index 301bf949feef4..1df74f9656357 100644
--- a/lldb/source/Interpreter/CommandInterpreter.cpp
+++ b/lldb/source/Interpreter/CommandInterpreter.cpp
@@ -2352,6 +2352,20 @@ void CommandInterpreter::SourceInitFileHome(CommandReturnObject &result,
     result.SetStatus(eReturnStatusSuccessFinishNoResult);
     return;
   }
+#if !defined(_WIN32)
+  // Facebook only:
+  //
+  // The 'fblldbinit' module will set up the python support specific to FB.
+  //
+  // As we want to have a mechanism for not triggering this by default, if the
+  // user is starting lldb disabling .lldbinit support, then we also don't load
+  // this module. This is equivalent to preppending the following line to all
+  // .lldbinit files.
+  //
+  // We don't have the fblldbinit module on windows, so we don't include it for
+  // that build.
+  HandleCommand("script import fblldbinit", eLazyBoolNo, result);
+#endif
 
   llvm::SmallString<128> init_file;