diff --git a/rust/datafusion/Cargo.toml b/rust/datafusion/Cargo.toml
index b713b773328..3d795ba04f8 100644
--- a/rust/datafusion/Cargo.toml
+++ b/rust/datafusion/Cargo.toml
@@ -78,6 +78,7 @@ tempfile = "3"
 prost = "0.7"
 arrow-flight = { path = "../arrow-flight", version = "4.0.0-SNAPSHOT" }
 tonic = "0.4"
+doc-comment = "0.3"
 
 [[bench]]
 name = "aggregate_query_sql"
diff --git a/rust/datafusion/src/lib.rs b/rust/datafusion/src/lib.rs
index 5126f90f89d..f0fcc4f1d29 100644
--- a/rust/datafusion/src/lib.rs
+++ b/rust/datafusion/src/lib.rs
@@ -175,3 +175,6 @@ pub mod test;
 #[macro_use]
 #[cfg(feature = "regex_expressions")]
 extern crate lazy_static;
+
+#[cfg(doctest)]
+doc_comment::doctest!("../README.md", readme_example_test);