diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0185aa8077..ac5dfe2516 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -114,6 +114,7 @@ jobs:
                -DPYTHON_INCLUDE_DIR:PATH=${{ env.pythonLocation }}/include/python3.11 \
                -DPYTHON_LIBRARY:FILEPATH=${{ env.pythonLocation }}/lib/libpython3.11.so \
                -DCOLLADA_SUPPORT=Off \
+               -DUSE_MMAP=On \
                "-DSCHEMA_VERSIONS=2x3;4;4x3_add2" \
                -DGLTF_SUPPORT=On \
                -DWITH_ROCKSDB=On \