diff --git a/sqlx-core/src/pool/options.rs b/sqlx-core/src/pool/options.rs
index 96dbf8ee..3d048f17 100644
--- a/sqlx-core/src/pool/options.rs
+++ b/sqlx-core/src/pool/options.rs
@@ -484,7 +484,7 @@ impl<DB: Database> PoolOptions<DB> {
     ///         .await?;
     ///
     ///         // Close the connection if the backend memory usage exceeds 256 MiB.
-    ///         Ok(total_memory_usage <= (2 << 28))
+    ///         Ok(total_memory_usage <= (1 << 28))
     ///     }))
     ///     .connect("postgres:// …").await?;
     /// # Ok(())