diff --git a/crates/storage/src/collections/stash/mod.rs b/crates/storage/src/collections/stash/mod.rs
index f1efce12fd4..f92033d4d5d 100644
--- a/crates/storage/src/collections/stash/mod.rs
+++ b/crates/storage/src/collections/stash/mod.rs
@@ -33,6 +33,9 @@ use crate::{
 };
 use ink_primitives::Key;
 
+#[cfg(doc)]
+use crate::traits::SpreadLayout;
+
 /// An index into the stash.
 type Index = u32;
 
diff --git a/crates/storage/src/lazy/lazy_hmap.rs b/crates/storage/src/lazy/lazy_hmap.rs
index e01d343cafb..d601237fda2 100644
--- a/crates/storage/src/lazy/lazy_hmap.rs
+++ b/crates/storage/src/lazy/lazy_hmap.rs
@@ -54,6 +54,9 @@ use ink_prelude::{
 };
 use ink_primitives::Key;
 
+#[cfg(doc)]
+use crate::lazy::LazyIndexMap;
+
 /// The map for the contract storage entries.
 ///
 /// # Note