diff --git a/assets/js/base/context/cart-checkout/checkout/index.js b/assets/js/base/context/cart-checkout/checkout/index.js
index ef55f0654de..0a7c95a3afd 100644
--- a/assets/js/base/context/cart-checkout/checkout/index.js
+++ b/assets/js/base/context/cart-checkout/checkout/index.js
@@ -93,7 +93,7 @@ const CheckoutProvider = ( {
 	// the redirectUrl for when checkout is reset to PRISTINE state.
 	DEFAULT_STATE.redirectUrl = redirectUrl;
 	const [ checkoutState, dispatch ] = useReducer( reducer, DEFAULT_STATE );
-	const [ observers, subscriber ] = useReducer( emitReducer );
+	const [ observers, subscriber ] = useReducer( emitReducer, {} );
 	const currentObservers = useRef( observers );
 	// set observers on ref so it's always current
 	useEffect( () => {
diff --git a/assets/js/base/context/cart-checkout/shipping/shipping-data-context.js b/assets/js/base/context/cart-checkout/shipping/shipping-data-context.js
index 2f200b9a25f..5acb978e0be 100644
--- a/assets/js/base/context/cart-checkout/shipping/shipping-data-context.js
+++ b/assets/js/base/context/cart-checkout/shipping/shipping-data-context.js
@@ -84,7 +84,7 @@ export const ShippingMethodDataProvider = ( { children } ) => {
 		errorStatusReducer,
 		NONE
 	);
-	const [ observers, subscriber ] = useReducer( emitReducer );
+	const [ observers, subscriber ] = useReducer( emitReducer, {} );
 	const [ currentShippingAddress, setAddressState ] = useState(
 		DEFAULT_SHIPPING_ADDRESS
 	);
@@ -140,7 +140,7 @@ export const ShippingMethodDataProvider = ( { children } ) => {
 			);
 		} else if ( ! shippingOptionsLoading && shippingOptions ) {
 			emitEvent(
-				currentObservers.observers,
+				currentObservers.current,
 				EMIT_TYPES.SHIPPING_RATES_SUCCESS,
 				shippingOptions
 			);