diff --git a/datafusion/expr/src/udaf.rs b/datafusion/expr/src/udaf.rs
index 92e5c0416442..b06e97acc283 100644
--- a/datafusion/expr/src/udaf.rs
+++ b/datafusion/expr/src/udaf.rs
@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-//! [`AggregrateUDF`]: User Defined Aggregate Functions
+//! [`AggregateUDF`]: User Defined Aggregate Functions
 
 use crate::{Accumulator, Expr};
 use crate::{