diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2f8b7e9d6..7efe7bb5f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -180,7 +180,7 @@ elseif (${CMAKE_Fortran_COMPILER_ID} STREQUAL "Intel")
       string(REPLACE "-xCORE-AVX2" "-xCORE-AVX-I"
              CMAKE_Fortran_FLAGS_LOPT1
              "${CMAKE_Fortran_FLAGS_LOPT1}")
-      string(REPLACE "-axSSE4.2,AVX,CORE-AVX2,CORE-AVX512" "-axSSE4.2,AVX,CORE-AVX-I"
+      string(REPLACE "-axSSE4.2,CORE-AVX2" "-axSSE4.2,CORE-AVX-I"
              CMAKE_Fortran_FLAGS_LOPT1
              "${CMAKE_Fortran_FLAGS_LOPT1}")
       SET_SOURCE_FILES_PROPERTIES(${CMAKE_CURRENT_SOURCE_DIR}/physics/radiation_aerosols.f