diff --git a/Modules/FortranCInterface/CMakeLists.txt b/Modules/FortranCInterface/CMakeLists.txt
index 3db657752c..af7d32d27f 100644
--- a/Modules/FortranCInterface/CMakeLists.txt
+++ b/Modules/FortranCInterface/CMakeLists.txt
@@ -47,6 +47,8 @@ set(module_symbols
   mymodule_MP_mysub       # NAG
   _QMmy_modulePmy_sub     # LLVMFlang
   _QMmymodulePmysub       # LLVMFlang
+  __module_my_module_my_sub # LFortran
+  __module_mymodule_mysub   # LFortran
   ${FortranCInterface_MODULE_SYMBOLS}
   )
 list(REMOVE_DUPLICATES module_symbols)