diff --git a/cumulus/polkadot-omni-node/lib/src/common/mod.rs b/cumulus/polkadot-omni-node/lib/src/common/mod.rs
index af003b87e3d24..7a11d9fb4a962 100644
--- a/cumulus/polkadot-omni-node/lib/src/common/mod.rs
+++ b/cumulus/polkadot-omni-node/lib/src/common/mod.rs
@@ -45,7 +45,7 @@ pub trait NodeBlock:
 {
 	type BoundedFromStrErr: Debug;
 	type BoundedNumber: FromStr<Err = Self::BoundedFromStrErr> + BlockNumber;
-	type BoundedHeader: HeaderT<Number = Self::BoundedNumber> + Unpin;
+	type BoundedHeader: HeaderT<Number = Self::BoundedNumber, Hash = DbHash> + Unpin;
 }
 
 impl<T> NodeBlock for T
diff --git a/prdoc/pr_7756.prdoc b/prdoc/pr_7756.prdoc
new file mode 100644
index 0000000000000..908374ae46a68
--- /dev/null
+++ b/prdoc/pr_7756.prdoc
@@ -0,0 +1,7 @@
+title: Fix unspecified Hash in NodeBlock
+doc:
+- audience: Node Dev
+  description: "Specified Hash type for BoundedHeader in NodeBlock, fixing possible internal compiler error"
+crates:
+- name: polkadot-omni-node-lib
+  bump: patch