diff --git a/sorc/ncep_post.fd/CMakeLists.txt b/sorc/ncep_post.fd/CMakeLists.txt
index aaf9599bc..13f8d7e02 100644
--- a/sorc/ncep_post.fd/CMakeLists.txt
+++ b/sorc/ncep_post.fd/CMakeLists.txt
@@ -185,6 +185,9 @@ elseif(CMAKE_Fortran_COMPILER_ID MATCHES "^(GNU|Clang|AppleClang)$")
       "-g -fbacktrace -ffree-form -ffree-line-length-none -fconvert=big-endian")
   set(CMAKE_Fortran_FLAGS_RELEASE "-O3")
   set(CMAKE_Fortran_FLAGS_DEBUG "-O0 -ggdb -fno-unsafe-math-optimizations -frounding-math -fsignaling-nans -ffpe-trap=invalid,zero,overflow -fbounds-check")
+  if(CMAKE_Fortran_COMPILER_VERSION VERSION_GREATER_EQUAL 10)
+    set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -fallow-argument-mismatch")
+  endif()
 endif()
 
 set(LIBNAME "nceppost")