diff --git a/__tests__/fileListAction.spec.ts b/__tests__/fileListAction.spec.ts
index d3b34e55..37c9c08e 100644
--- a/__tests__/fileListAction.spec.ts
+++ b/__tests__/fileListAction.spec.ts
@@ -103,6 +103,7 @@ describe('Invalid FileListAction creation', () => {
 	test('Invalid iconSvgInline', () => {
 		expect(() => new FileListAction({
 			id: 'test',
+			iconSvgInline: null,
 			displayName: () => 'Test',
 			order: 0,
 			exec: async () => {},
diff --git a/lib/fileListAction.ts b/lib/fileListAction.ts
index d8b2df19..4bee658e 100644
--- a/lib/fileListAction.ts
+++ b/lib/fileListAction.ts
@@ -20,7 +20,7 @@ interface FileListActionData {
 	displayName: (view: View) => string
 
 	/** Raw svg string */
-	iconSvgInline: (view: View) => string
+	iconSvgInline?: (view: View) => string
 
 	/** Sort order */
 	order: number
@@ -86,7 +86,7 @@ export class FileListAction {
 			throw new Error('Invalid displayName function')
 		}
 
-		if (!action.iconSvgInline || typeof action.iconSvgInline !== 'function') {
+		if ('iconSvgInline' in action && typeof action.iconSvgInline !== 'function') {
 			throw new Error('Invalid iconSvgInline function')
 		}