diff --git a/pyproject.toml b/pyproject.toml
index 1f6d7518..c43a804f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -89,6 +89,7 @@ line-length = 88
 # Note that we also hard-code /project as the root, even though the
 # CIBUILDWHEEL docs suggest we should be using {project} ???
 # https://github.com/pypa/cibuildwheel/issues/1931
+before-build = "chmod 755 /project/subprojects/tableauhyperapi-cxx-linux-x86_64-release-main.0.0.20027.rcc745c2c/lib/hyper/hyperd"
 repair-wheel-command = """
 LD_LIBRARY_PATH=/project/subprojects/tableauhyperapi-cxx-linux-x86_64-release-main.0.0.20027.rcc745c2c/lib:$LD_LIBRARY_PATH auditwheel repair -w {dest_dir} {wheel}
 """