diff --git a/sorc/cpld_gridgen.fd/CMakeLists.txt b/sorc/cpld_gridgen.fd/CMakeLists.txt
index 918b3ce72..c4e99ae63 100644
--- a/sorc/cpld_gridgen.fd/CMakeLists.txt
+++ b/sorc/cpld_gridgen.fd/CMakeLists.txt
@@ -25,11 +25,6 @@ if(CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel)$")
   set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -r8 -assume byterecl")
 elseif(CMAKE_Fortran_COMPILER_ID MATCHES "^(GNU)$")
   set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -ffree-line-length-0 -fdefault-real-8")
-  
-  # Turn on this argument mismatch flag for gfortran10.
-# if(CMAKE_Fortran_COMPILER_VERSION VERSION_GREATER_EQUAL 10)
-#    set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -fallow-argument-mismatch")
-# endif()
 endif()
 
 set(exe_name cpld_gridgen)
diff --git a/sorc/lsm_routines.fd/noah.fd/CMakeLists.txt b/sorc/lsm_routines.fd/noah.fd/CMakeLists.txt
index b9f89effa..daa252e56 100644
--- a/sorc/lsm_routines.fd/noah.fd/CMakeLists.txt
+++ b/sorc/lsm_routines.fd/noah.fd/CMakeLists.txt
@@ -12,9 +12,6 @@ if(CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel)$")
   set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -r8 -convert big_endian")
 elseif(CMAKE_Fortran_COMPILER_ID MATCHES "^(GNU)$")
   set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -fdefault-real-8 -fconvert=big-endian")
-# if(CMAKE_Fortran_COMPILER_VERSION VERSION_GREATER_EQUAL 10)
-#   set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -fallow-argument-mismatch")
-# endif()
 endif()
 
 set(lib_name noah_lsm_routines)
diff --git a/sorc/weight_gen.fd/CMakeLists.txt b/sorc/weight_gen.fd/CMakeLists.txt
index 8d8e05db7..ea3ee2fdf 100644
--- a/sorc/weight_gen.fd/CMakeLists.txt
+++ b/sorc/weight_gen.fd/CMakeLists.txt
@@ -6,9 +6,9 @@ if(CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel)$")
   set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -r8 -i4 -convert big_endian")
 elseif(CMAKE_Fortran_COMPILER_ID MATCHES "^(GNU)$")
   set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -fdefault-real-8")
-  if(CMAKE_Fortran_COMPILER_VERSION VERSION_GREATER_EQUAL 10)
-    set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -fallow-argument-mismatch")
-  endif()
+# if(CMAKE_Fortran_COMPILER_VERSION VERSION_GREATER_EQUAL 10)
+#   set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -fallow-argument-mismatch")
+# endif()
 endif()
 
 set(exe_name weight_gen)