diff --git a/src/JournalViewAddressBook.tsx b/src/JournalViewAddressBook.tsx
index cb8be9e..fd7612c 100644
--- a/src/JournalViewAddressBook.tsx
+++ b/src/JournalViewAddressBook.tsx
@@ -19,7 +19,7 @@ export class JournalViewAddressBook extends React.Component {
       return (<div>Loading</div>);
     }
 
-    let items: Map<string, any> = new Map();
+    let items: Map<string, ICAL.Component> = new Map();
 
     for (const syncEntry of this.props.entries) {
       let comp = new ICAL.Component(ICAL.parse(syncEntry.content));
@@ -34,8 +34,7 @@ export class JournalViewAddressBook extends React.Component {
       }
     }
 
-    // FIXME: should be ICAL.component
-    let entries: Array<any> = Array.from(items.values()).sort((_a: any, _b: any) => {
+    let entries = Array.from(items.values()).sort((_a, _b) => {
       const a = _a.getFirstPropertyValue('fn');
       const b = _b.getFirstPropertyValue('fn');
 
diff --git a/src/JournalViewCalendar.tsx b/src/JournalViewCalendar.tsx
index f4bc790..5a97ff4 100644
--- a/src/JournalViewCalendar.tsx
+++ b/src/JournalViewCalendar.tsx
@@ -19,11 +19,15 @@ export class JournalViewCalendar extends React.Component {
       return (<div>Loading</div>);
     }
 
-    let items: Map<string, any> = new Map();
+    let items: Map<string, ICAL.Component> = new Map();
 
     for (const syncEntry of this.props.entries) {
       let comp = new ICAL.Component(ICAL.parse(syncEntry.content)).getFirstSubcomponent('vevent');
 
+      if (comp === null) {
+        continue;
+      }
+
       const uid = comp.getFirstPropertyValue('uid');
 
       if ((syncEntry.action === EteSync.SyncEntryAction.Add) ||
@@ -34,10 +38,9 @@ export class JournalViewCalendar extends React.Component {
       }
     }
 
-    // FIXME: should be ICAL.component
-    let entries: Array<any> = Array.from(items.values()).map((value: string) => (
+    let entries = Array.from(items.values()).map((value) => (
       new ICAL.Event(value)
-    )).sort((a: any, b: any) => {
+    )).sort((a, b) => {
       if (a.summary < b.summary) {
         return -1;
       } else if (a.summary > b.summary) {
diff --git a/src/ical.js.d.ts b/src/ical.js.d.ts
index ccd4a6c..fc05263 100644
--- a/src/ical.js.d.ts
+++ b/src/ical.js.d.ts
@@ -1,5 +1,20 @@
-declare var ICAL: any;
-
 declare module 'ical.js' {
-  export = ICAL;
+  function parse(input: string): Array<any>;
+  class Component {
+    name: string;
+
+    constructor(jCal: Array<any> | string, parent?: Component);
+
+    getFirstSubcomponent(name?: string): Component | null;
+
+    getFirstPropertyValue(name?: string): string;
+  }
+
+  class Event {
+    uid: string;
+    summary: string;
+
+    constructor(component?: Component | null,
+                options?: {strictExceptions: boolean, exepctions: Array<Component|Event>});
+  }
 }