diff --git a/doc/CHECKLIST.md b/doc/CHECKLIST.md
index 373c108..4195a24 100644
--- a/doc/CHECKLIST.md
+++ b/doc/CHECKLIST.md
@@ -135,5 +135,5 @@
   - [x] MacOS, Windows, Linux
   - [x] 1.63, stable, beta, nightly
   - [x] Format and clippy
-  - [ ] Regtest sync with Bitcoin Core
+  - [x] Regtest sync with Bitcoin Core
   - [x] On PR
diff --git a/src/chain/block_queue.rs b/src/chain/block_queue.rs
index 109a6ae..d3f3fc9 100644
--- a/src/chain/block_queue.rs
+++ b/src/chain/block_queue.rs
@@ -180,7 +180,6 @@ mod test {
     }
 
     #[tokio::test]
-    #[ignore = "wastes time"]
     async fn test_laggy_peer() {
         use std::time::Duration;
         let hash_1 =
diff --git a/src/core/client.rs b/src/core/client.rs
index ccf985e..692205d 100644
--- a/src/core/client.rs
+++ b/src/core/client.rs
@@ -241,7 +241,9 @@ macro_rules! impl_core_client {
                     .map_err(|_| FetchHeaderError::RecvError)?
             }
 
-            /// Request a block be fetched.
+            /// Request a block be fetched. Note that this method will request a block
+            /// from a connected peer's inventory, and may take an indefinite amount of
+            /// time, until a peer responds.
             ///
             /// # Errors
             ///