diff --git a/src/constants/shared_preferences.js b/src/constants/shared_preferences.js
index 56faf8f..e508e83 100644
--- a/src/constants/shared_preferences.js
+++ b/src/constants/shared_preferences.js
@@ -1,10 +1,10 @@
 /*
-* How to use this file:
-* Settings exported from here will trigger the setting to be
-* sent to the preference middleware when set using the
-* usual setDaemonSettings and clearDaemonSettings methods.
-*
-* See redux/settings/actions in the app for where this is used.
+ * How to use this file:
+ * Settings exported from here will trigger the setting to be
+ * sent to the preference middleware when set using the
+ * usual setDaemonSettings and clearDaemonSettings methods.
+ *
+ * See redux/settings/actions in the app for where this is used.
  */
 
 import * as DAEMON_SETTINGS from './daemon_settings';
diff --git a/src/redux/actions/content.js b/src/redux/actions/content.js
index fff0f11..2654f74 100644
--- a/src/redux/actions/content.js
+++ b/src/redux/actions/content.js
@@ -1,7 +1,8 @@
+// @flow
 import * as ACTIONS from 'constants/action_types';
 
 export function savePosition(claimId: string, outpoint: string, position: number) {
-  return dispatch => {
+  return (dispatch: Dispatch) => {
     dispatch({
       type: ACTIONS.SET_CONTENT_POSITION,
       data: { claimId, outpoint, position },
diff --git a/src/redux/actions/sync.js b/src/redux/actions/sync.js
index 41a25ea..7f80d33 100644
--- a/src/redux/actions/sync.js
+++ b/src/redux/actions/sync.js
@@ -14,7 +14,7 @@ type SharedData = {
 
 function extractUserState(rawObj: SharedData) {
   if (rawObj && rawObj.version === '0.1' && rawObj.value) {
-    const { subscriptions, tags, blocked, settings} = rawObj.value;
+    const { subscriptions, tags, blocked, settings } = rawObj.value;
 
     return {
       ...(subscriptions ? { subscriptions } : {}),
@@ -30,7 +30,10 @@ function extractUserState(rawObj: SharedData) {
 export function doPopulateSharedUserState(sharedSettings: any) {
   return (dispatch: Dispatch) => {
     const { subscriptions, tags, blocked, settings } = extractUserState(sharedSettings);
-    dispatch({ type: ACTIONS.USER_STATE_POPULATE, data: { subscriptions, tags, blocked, settings } });
+    dispatch({
+      type: ACTIONS.USER_STATE_POPULATE,
+      data: { subscriptions, tags, blocked, settings },
+    });
   };
 }
 
diff --git a/src/redux/reducers/blocked.js b/src/redux/reducers/blocked.js
index b69d9c9..c688936 100644
--- a/src/redux/reducers/blocked.js
+++ b/src/redux/reducers/blocked.js
@@ -33,8 +33,7 @@ export const blockedReducer = handleActions(
       const { blocked } = action.data;
       return {
         ...state,
-        blockedChannels:
-          blocked && blocked.length ? blocked : state.blockedChannels,
+        blockedChannels: blocked && blocked.length ? blocked : state.blockedChannels,
       };
     },
   },
diff --git a/src/redux/reducers/claims.js b/src/redux/reducers/claims.js
index 8e6b121..56a4383 100644
--- a/src/redux/reducers/claims.js
+++ b/src/redux/reducers/claims.js
@@ -265,7 +265,8 @@ reducers[ACTIONS.FETCH_CHANNEL_CLAIMS_COMPLETED] = (state: State, action: any):
   const paginatedClaimsByChannel = Object.assign({}, state.paginatedClaimsByChannel);
   // check if count has changed - that means cached pagination will be wrong, so clear it
   const previousCount = paginatedClaimsByChannel[uri] && paginatedClaimsByChannel[uri]['itemCount'];
-  const byChannel = (claimsInChannel === previousCount) ? Object.assign({}, paginatedClaimsByChannel[uri]) : {};
+  const byChannel =
+    claimsInChannel === previousCount ? Object.assign({}, paginatedClaimsByChannel[uri]) : {};
   const allClaimIds = new Set(byChannel.all);
   const currentPageClaimIds = [];
   const byId = Object.assign({}, state.byId);
diff --git a/src/redux/selectors/content.js b/src/redux/selectors/content.js
index f494fab..2daac6e 100644
--- a/src/redux/selectors/content.js
+++ b/src/redux/selectors/content.js
@@ -1,14 +1,19 @@
+// @flow
 import { createSelector } from 'reselect';
 import { makeSelectClaimForUri } from 'redux/selectors/claims';
 
 export const selectState = (state: any) => state.content || {};
 
 export const makeSelectContentPositionForUri = (uri: string) =>
-  createSelector(selectState, makeSelectClaimForUri(uri), (state, claim) => {
-    if (!claim) {
-      return null;
+  createSelector(
+    selectState,
+    makeSelectClaimForUri(uri),
+    (state, claim) => {
+      if (!claim) {
+        return null;
+      }
+      const outpoint = `${claim.txid}:${claim.nout}`;
+      const id = claim.claim_id;
+      return state.positions[id] ? state.positions[id][outpoint] : null;
     }
-    const outpoint = `${claim.txid}:${claim.nout}`;
-    const id = claim.claim_id;
-    return state.positions[id] ? state.positions[id][outpoint] : null;
-  });
+  );
diff --git a/src/redux/selectors/notifications.js b/src/redux/selectors/notifications.js
index 00844be..8894442 100644
--- a/src/redux/selectors/notifications.js
+++ b/src/redux/selectors/notifications.js
@@ -1,26 +1,32 @@
 import { createSelector } from 'reselect';
 
-export const selectState = (state) => state.notifications || {};
+export const selectState = state => state.notifications || {};
 
-export const selectToast = createSelector(selectState, (state) => {
-  if (state.toasts.length) {
-    const { id, params } = state.toasts[0];
-    return {
-      id,
-      ...params,
-    };
+export const selectToast = createSelector(
+  selectState,
+  state => {
+    if (state.toasts.length) {
+      const { id, params } = state.toasts[0];
+      return {
+        id,
+        ...params,
+      };
+    }
+
+    return null;
   }
+);
 
-  return null;
-});
+export const selectError = createSelector(
+  selectState,
+  state => {
+    if (state.errors.length) {
+      const { error } = state.errors[0];
+      return {
+        error,
+      };
+    }
 
-export const selectError = createSelector(selectState, (state) => {
-  if (state.errors.length) {
-    const { error } = state.errors[0];
-    return {
-      error,
-    };
+    return null;
   }
-
-  return null;
-});
+);