diff --git a/postgres-protocol/src/message/backend.rs b/postgres-protocol/src/message/backend.rs
index 45e5c407..3f5374d6 100644
--- a/postgres-protocol/src/message/backend.rs
+++ b/postgres-protocol/src/message/backend.rs
@@ -524,6 +524,7 @@ impl CopyOutResponseBody {
     }
 }
 
+#[derive(Debug)]
 pub struct DataRowBody {
     storage: Bytes,
     len: u16,
diff --git a/tokio-postgres/src/lib.rs b/tokio-postgres/src/lib.rs
index bd4d7b8c..a9ecba4f 100644
--- a/tokio-postgres/src/lib.rs
+++ b/tokio-postgres/src/lib.rs
@@ -239,6 +239,7 @@ pub enum AsyncMessage {
 }
 
 /// Message returned by the `SimpleQuery` stream.
+#[derive(Debug)]
 #[non_exhaustive]
 pub enum SimpleQueryMessage {
     /// A row of data.
diff --git a/tokio-postgres/src/row.rs b/tokio-postgres/src/row.rs
index e3ed696c..db179b43 100644
--- a/tokio-postgres/src/row.rs
+++ b/tokio-postgres/src/row.rs
@@ -196,6 +196,7 @@ impl AsName for SimpleColumn {
 }
 
 /// A row of data returned from the database by a simple query.
+#[derive(Debug)]
 pub struct SimpleQueryRow {
     columns: Arc<[SimpleColumn]>,
     body: DataRowBody,
diff --git a/tokio-postgres/src/simple_query.rs b/tokio-postgres/src/simple_query.rs
index 19cb1023..7c266e40 100644
--- a/tokio-postgres/src/simple_query.rs
+++ b/tokio-postgres/src/simple_query.rs
@@ -15,6 +15,7 @@ use std::sync::Arc;
 use std::task::{Context, Poll};
 
 /// Information about a column of a single query row.
+#[derive(Debug)]
 pub struct SimpleColumn {
     name: String,
 }