diff --git a/packages/core/src/render3/reactive_lview_consumer.ts b/packages/core/src/render3/reactive_lview_consumer.ts
index 14f33b33e91..84f8170848b 100644
--- a/packages/core/src/render3/reactive_lview_consumer.ts
+++ b/packages/core/src/render3/reactive_lview_consumer.ts
@@ -57,7 +57,7 @@ export function commitLViewConsumerIfHasProducers(
   currentConsumer = createLViewConsumer();
 }
 
-const REACTIVE_LVIEW_CONSUMER_NODE = {
+const REACTIVE_LVIEW_CONSUMER_NODE: ReactiveLViewConsumer = {
   ...REACTIVE_NODE,
   consumerIsAlwaysLive: true,
   consumerMarkedDirty: (node: ReactiveLViewConsumer) => {
diff --git a/packages/core/src/signals/src/graph.ts b/packages/core/src/signals/src/graph.ts
index 7887843f9ea..5c4d01d8f6b 100644
--- a/packages/core/src/signals/src/graph.ts
+++ b/packages/core/src/signals/src/graph.ts
@@ -26,7 +26,7 @@ export function setActiveConsumer(consumer: ReactiveNode|null): ReactiveNode|nul
   return prev;
 }
 
-export const REACTIVE_NODE = {
+export const REACTIVE_NODE: ReactiveNode = {
   version: 0 as Version,
   dirty: false,
   producerNode: undefined,
diff --git a/packages/core/src/signals/src/watch.ts b/packages/core/src/signals/src/watch.ts
index 1b8dc5be00e..f3f1672ebe2 100644
--- a/packages/core/src/signals/src/watch.ts
+++ b/packages/core/src/signals/src/watch.ts
@@ -83,7 +83,7 @@ interface WatchNode extends ReactiveNode {
   ref: Watch;
 }
 
-const WATCH_NODE = {
+const WATCH_NODE: Partial<WatchNode> = {
   ...REACTIVE_NODE,
   consumerIsAlwaysLive: true,
   consumerAllowSignalWrites: false,