diff --git a/cmake/cmake_cp2k.sh b/cmake/cmake_cp2k.sh
index 1399a7bb45..1edf9a7598 100644
--- a/cmake/cmake_cp2k.sh
+++ b/cmake/cmake_cp2k.sh
@@ -91,12 +91,15 @@ elif [[ "${PROFILE}" == "toolchain" ]] && [[ "${VERSION}" == "sdbg" ]]; then
   CMAKE_EXIT_CODE=$?
 
 elif [[ "${PROFILE}" == "toolchain" ]] && [[ "${VERSION}" == "psmp" ]]; then
+  # TODO Re-enable SIRIUS once performance regression of COSMA is fixed:
+  # https://github.com/cp2k/cp2k/issues/4663
   cmake \
     -GNinja \
     -DCMAKE_INSTALL_PREFIX="${INSTALL_PREFIX}" \
     -DCP2K_USE_EVERYTHING=ON \
     -DCP2K_USE_DLAF=OFF \
     -DCP2K_USE_PEXSI=OFF \
+    -DCP2K_USE_SIRIUS=OFF \
     -Werror=dev \
     .. |& tee ./cmake.log
   CMAKE_EXIT_CODE=$?