diff --git a/cmake/ecwam_compile_flags.cmake b/cmake/ecwam_compile_flags.cmake
index f4685757..46e9efce 100644
--- a/cmake/ecwam_compile_flags.cmake
+++ b/cmake/ecwam_compile_flags.cmake
@@ -28,9 +28,9 @@ elseif(CMAKE_Fortran_COMPILER_ID MATCHES "Intel")
   set(checkbounds_flags   "-check bounds")
   set(initsnan_flags      "-init=snan")
   set(fpe_flags           "-fpe0")
-  set(vectorization_flags "-march=core-avx2 -no-fma")
-  set(fpmodel_flags       "-fp-model precise -fp-speculation=safe")
-  set(transcendentals_flags "-fast-transcendentals")
+#  set(vectorization_flags "-march=core-avx2 -no-fma")
+#  set(fpmodel_flags       "-fp-model precise -fp-speculation=safe")
+#  set(transcendentals_flags "-fast-transcendentals")
 
 elseif(CMAKE_Fortran_COMPILER_ID MATCHES "PGI|NVHPC")
   set(autopromote_flags   "-r8")