diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 6297ca2a7..4d037e060 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -121,6 +121,6 @@ jobs:
       - name: cmake
         run: cmake -S . -B build -DJSON_CI=On
       - name: build
-        run: >
-          . /opt/intel/oneapi/setvars.sh ;
+        run: |
+          . /opt/intel/oneapi/setvars.sh
           cmake --build build --target ci_icpc
diff --git a/cmake/ci.cmake b/cmake/ci.cmake
index 9fafaa1c9..56a80c066 100644
--- a/cmake/ci.cmake
+++ b/cmake/ci.cmake
@@ -885,7 +885,6 @@ add_custom_target(ci_icpc
     COMMAND ${CMAKE_COMMAND}
         -DCMAKE_BUILD_TYPE=Debug -GNinja
         -DCMAKE_C_COMPILER=icc -DCMAKE_CXX_COMPILER=icpc
-        -DCMAKE_CXX_FLAGS="-DJSON_HAS_FILESYSTEM=0 -DJSON_HAS_EXPERIMENTAL_FILESYSTEM=0"
         -DJSON_BuildTests=ON -DJSON_FastTests=ON
         -S${PROJECT_SOURCE_DIR} -B${PROJECT_BINARY_DIR}/build_icpc
     COMMAND ${CMAKE_COMMAND} --build ${PROJECT_BINARY_DIR}/build_icpc