diff --git a/src/degrib2/CMakeLists.txt b/src/degrib2/CMakeLists.txt
index ba680cfb..dc80fdb3 100644
--- a/src/degrib2/CMakeLists.txt
+++ b/src/degrib2/CMakeLists.txt
@@ -5,7 +5,7 @@
 
 # Set compiler flags.
 if(CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel|IntelLLVM)$")
-  set(CMAKE_Fortran_FLAGS "-g -convert big_endian -axCORE-AVX2 -fpp ${CMAKE_Fortran_FLAGS}")
+  set(CMAKE_Fortran_FLAGS "-g -convert big_endian -fpp ${CMAKE_Fortran_FLAGS}")
   set(CMAKE_Fortran_FLAGS_RELEASE "-O3 ${CMAKE_Fortran_FLAGS}")
 elseif(CMAKE_Fortran_COMPILER_ID MATCHES "^(GNU)$")
   set(CMAKE_Fortran_FLAGS "-g -fconvert=big-endian -cpp ${CMAKE_Fortran_FLAGS}")
diff --git a/src/grb2index/CMakeLists.txt b/src/grb2index/CMakeLists.txt
index c62f6c42..1c61a63f 100644
--- a/src/grb2index/CMakeLists.txt
+++ b/src/grb2index/CMakeLists.txt
@@ -5,7 +5,7 @@
 
 # Set compiler flags.
 if(CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel|IntelLLVM)$")
-  set(CMAKE_Fortran_FLAGS "-g -convert big_endian -axCORE-AVX2 -fpp ${CMAKE_Fortran_FLAGS}")
+  set(CMAKE_Fortran_FLAGS "-g -convert big_endian -fpp ${CMAKE_Fortran_FLAGS}")
   set(CMAKE_Fortran_FLAGS_RELEASE "-O3 ${CMAKE_Fortran_FLAGS}")
 elseif(CMAKE_Fortran_COMPILER_ID MATCHES "^(GNU)$")
   set(CMAKE_Fortran_FLAGS "-g -fconvert=big-endian -cpp ${CMAKE_Fortran_FLAGS}")
diff --git a/src/grbindex/CMakeLists.txt b/src/grbindex/CMakeLists.txt
index 3fbf0c77..2e737e3b 100644
--- a/src/grbindex/CMakeLists.txt
+++ b/src/grbindex/CMakeLists.txt
@@ -5,7 +5,7 @@
 
 if(CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel|IntelLLVM)$")
   set(CMAKE_Fortran_FLAGS
-      "-g -assume noold_ldout_format -convert big_endian -axCORE-AVX2 -fpp ${CMAKE_Fortran_FLAGS}")
+      "-g -assume noold_ldout_format -convert big_endian -fpp ${CMAKE_Fortran_FLAGS}")
   set(CMAKE_Fortran_FLAGS_RELEASE "-O3 ${CMAKE_Fortran_FLAGS}")
 elseif(CMAKE_Fortran_COMPILER_ID MATCHES "^(GNU)$")
   set(CMAKE_Fortran_FLAGS "-g -fconvert=big-endian -cpp ${CMAKE_Fortran_FLAGS}")
diff --git a/src/tocgrib/CMakeLists.txt b/src/tocgrib/CMakeLists.txt
index cac42ab3..ea76d050 100644
--- a/src/tocgrib/CMakeLists.txt
+++ b/src/tocgrib/CMakeLists.txt
@@ -5,7 +5,7 @@
 
 # Set compiler flags.
 if(CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel|IntelLLVM)$")
-  set(CMAKE_Fortran_FLAGS "-g -assume noold_ldout_format -axCORE-AVX2 ${CMAKE_Fortran_FLAGS}")
+  set(CMAKE_Fortran_FLAGS "-g -assume noold_ldout_format ${CMAKE_Fortran_FLAGS}")
   set(CMAKE_Fortran_FLAGS_RELEASE "-O2 ${CMAKE_Fortran_FLAGS}")
 elseif(CMAKE_Fortran_COMPILER_ID MATCHES "^(GNU)$")
   set(CMAKE_Fortran_FLAGS "-g ${CMAKE_Fortran_FLAGS}")
diff --git a/src/tocgrib2/CMakeLists.txt b/src/tocgrib2/CMakeLists.txt
index e60a54bf..0dd14fff 100644
--- a/src/tocgrib2/CMakeLists.txt
+++ b/src/tocgrib2/CMakeLists.txt
@@ -5,7 +5,7 @@
 
 # Set the compiler flags.
 if(CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel|IntelLLVM)$")
-  set(CMAKE_Fortran_FLAGS "-g -axCORE-AVX2 ${CMAKE_Fortran_FLAGS}")
+  set(CMAKE_Fortran_FLAGS "-g ${CMAKE_Fortran_FLAGS}")
   set(CMAKE_Fortran_FLAGS_RELEASE "-O3 ${CMAKE_Fortran_FLAGS}")
 elseif(CMAKE_Fortran_COMPILER_ID MATCHES "^(GNU)$")
   set(CMAKE_Fortran_FLAGS "-g ${CMAKE_Fortran_FLAGS}")
diff --git a/src/tocgrib2super/CMakeLists.txt b/src/tocgrib2super/CMakeLists.txt
index 20501315..17c98eb4 100644
--- a/src/tocgrib2super/CMakeLists.txt
+++ b/src/tocgrib2super/CMakeLists.txt
@@ -5,7 +5,7 @@
 
 # Set the compiler flags.
 if(CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel|IntelLLVM)$")
-  set(CMAKE_Fortran_FLAGS "-g -assume noold_ldout_format -axCORE-AVX2 ${CMAKE_Fortran_FLAGS}")
+  set(CMAKE_Fortran_FLAGS "-g -assume noold_ldout_format ${CMAKE_Fortran_FLAGS}")
   set(CMAKE_Fortran_FLAGS_RELEASE "-O2 ${CMAKE_Fortran_FLAGS}")
 elseif(CMAKE_Fortran_COMPILER_ID MATCHES "^(GNU)$")
   set(CMAKE_Fortran_FLAGS "-g ${CMAKE_Fortran_FLAGS}")