diff --git a/Modules/Compiler/LLVMFlang-Fortran.cmake b/Modules/Compiler/LLVMFlang-Fortran.cmake
index 0a432a9922..8b9456e0c9 100644
--- a/Modules/Compiler/LLVMFlang-Fortran.cmake
+++ b/Modules/Compiler/LLVMFlang-Fortran.cmake
@@ -7,7 +7,7 @@ set(CMAKE_Fortran_PREPROCESS_SOURCE
 set(CMAKE_Fortran_FORMAT_FIXED_FLAG "-ffixed-form")
 set(CMAKE_Fortran_FORMAT_FREE_FLAG "-ffree-form")
 
-set(CMAKE_Fortran_MODDIR_FLAG "-module-dir")
+set(CMAKE_Fortran_MODDIR_FLAG "-J")
 
 set(CMAKE_Fortran_COMPILE_OPTIONS_PREPROCESS_ON "-cpp")
 set(CMAKE_Fortran_COMPILE_OPTIONS_PREPROCESS_OFF "-nocpp")