diff --git a/sorc/orog_mask_tools.fd/orog.fd/CMakeLists.txt b/sorc/orog_mask_tools.fd/orog.fd/CMakeLists.txt
index 373d8c776..955101450 100644
--- a/sorc/orog_mask_tools.fd/orog.fd/CMakeLists.txt
+++ b/sorc/orog_mask_tools.fd/orog.fd/CMakeLists.txt
@@ -2,7 +2,7 @@ set(lib_src io_utils.F90 orog_utils.F90)
 set(exe_src mtnlm7_oclsm.F90)
 
 if(CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel)$")
-  set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -warn unused -r8 -convert big_endian -assume byterecl")
+  set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -r8 -convert big_endian -assume byterecl")
 elseif(CMAKE_Fortran_COMPILER_ID MATCHES "^(GNU)$")
   set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -fdefault-real-8 -fconvert=big-endian -fno-range-check")
   if(CMAKE_Fortran_COMPILER_VERSION VERSION_GREATER_EQUAL 10)