diff --git a/ci/build_docs.sh b/ci/build_docs.sh
index ceab29c2473..78518cdad53 100755
--- a/ci/build_docs.sh
+++ b/ci/build_docs.sh
@@ -40,8 +40,8 @@ popd
 
 rapids-logger "Build Python docs"
 pushd docs/cudf
-make dirhtml O="-j 4"
-make text O="-j 4"
+make dirhtml
+make text
 mkdir -p "${RAPIDS_DOCS_DIR}/cudf/"{html,txt}
 mv build/dirhtml/* "${RAPIDS_DOCS_DIR}/cudf/html"
 mv build/text/* "${RAPIDS_DOCS_DIR}/cudf/txt"