diff --git a/src/DecryptionFailureTracker.ts b/src/DecryptionFailureTracker.ts
index 960d844e9e..07c0c546fe 100644
--- a/src/DecryptionFailureTracker.ts
+++ b/src/DecryptionFailureTracker.ts
@@ -25,7 +25,7 @@ export class DecryptionFailure {
     }
 }
 
-type Fn = (count: number, trackedErrCode: string) => void;
+type TrackingFn = (count: number, trackedErrCode: string) => void;
 type ErrCodeMapFn = (errcode: string) => string;
 
 export class DecryptionFailureTracker {
@@ -73,7 +73,7 @@ export class DecryptionFailureTracker {
      * @param {function?} errorCodeMapFn The function used to map error codes to the
      * trackedErrorCode. If not provided, the `.code` of errors will be used.
      */
-    constructor(private readonly fn: Fn, private readonly errorCodeMapFn?: ErrCodeMapFn) {
+    constructor(private readonly fn: TrackingFn, private readonly errorCodeMapFn?: ErrCodeMapFn) {
         if (!fn || typeof fn !== 'function') {
             throw new Error('DecryptionFailureTracker requires tracking function');
         }
diff --git a/src/HtmlUtils.tsx b/src/HtmlUtils.tsx
index 5803029030..983538d65b 100644
--- a/src/HtmlUtils.tsx
+++ b/src/HtmlUtils.tsx
@@ -505,7 +505,7 @@ export function bodyToHtml(content: IContent, highlights: string[], opts: IOpts
  * @param {object} [options] Options for linkifyString. Default: linkifyMatrix.options
  * @returns {string} Linkified string
  */
-export function linkifyString(str: string, options = linkifyMatrix.options) {
+export function linkifyString(str: string, options = linkifyMatrix.options): string {
     return _linkifyString(str, options);
 }
 
@@ -516,7 +516,7 @@ export function linkifyString(str: string, options = linkifyMatrix.options) {
  * @param {object} [options] Options for linkifyElement. Default: linkifyMatrix.options
  * @returns {object}
  */
-export function linkifyElement(element: HTMLElement, options = linkifyMatrix.options) {
+export function linkifyElement(element: HTMLElement, options = linkifyMatrix.options): HTMLElement {
     return _linkifyElement(element, options);
 }
 
diff --git a/src/utils/EditorStateTransfer.ts b/src/utils/EditorStateTransfer.ts
index 42e1a316d6..ba303f9b73 100644
--- a/src/utils/EditorStateTransfer.ts
+++ b/src/utils/EditorStateTransfer.ts
@@ -30,24 +30,24 @@ export default class EditorStateTransfer {
 
     constructor(private readonly event: MatrixEvent) {}
 
-    setEditorState(caret: Caret, serializedParts: SerializedPart[]) {
+    public setEditorState(caret: Caret, serializedParts: SerializedPart[]) {
         this.caret = caret;
         this.serializedParts = serializedParts;
     }
 
-    hasEditorState() {
+    public hasEditorState() {
         return !!this.serializedParts;
     }
 
-    getSerializedParts() {
+    public getSerializedParts() {
         return this.serializedParts;
     }
 
-    getCaret() {
+    public getCaret() {
         return this.caret;
     }
 
-    getEvent() {
+    public getEvent() {
         return this.event;
     }
 }