diff --git a/src/api/endpoints/i/update.ts b/src/api/endpoints/i/update.ts
index e3b307b0b..a5f153861 100644
--- a/src/api/endpoints/i/update.ts
+++ b/src/api/endpoints/i/update.ts
@@ -23,22 +23,22 @@ module.exports = async (params, user, _, isSecure) =>
 	new Promise(async (res, rej) =>
 {
 	// Get 'name' parameter
-	const [name, nameErr] = it(params.name).expect.string().notNull().validate(isValidName).qed();
+	const [name, nameErr] = it(params.name).expect.string().validate(isValidName).qed();
 	if (nameErr) return rej('invalid name param');
 	if (name) user.name = name;
 
 	// Get 'description' parameter
-	const [description, descriptionErr] = it(params.description).expect.string().validate(isValidDescription).qed();
+	const [description, descriptionErr] = it(params.description).expect.nullable.string().validate(isValidDescription).qed();
 	if (descriptionErr) return rej('invalid description param');
 	if (description !== undefined) user.description = description;
 
 	// Get 'location' parameter
-	const [location, locationErr] = it(params.location).expect.string().validate(isValidLocation).qed();
+	const [location, locationErr] = it(params.location).expect.nullable.string().validate(isValidLocation).qed();
 	if (locationErr) return rej('invalid location param');
 	if (location !== undefined) user.location = location;
 
 	// Get 'birthday' parameter
-	const [birthday, birthdayErr] = it(params.birthday).expect.string().validate(isValidBirthday).qed();
+	const [birthday, birthdayErr] = it(params.birthday).expect.nullable.string().validate(isValidBirthday).qed();
 	if (birthdayErr) return rej('invalid birthday param');
 	if (birthday !== undefined) user.birthday = birthday;
 
diff --git a/src/api/it.ts b/src/api/it.ts
index f540172ad..845a56365 100644
--- a/src/api/it.ts
+++ b/src/api/it.ts
@@ -74,9 +74,14 @@ class QueryCore implements Query {
 	value: any;
 	error: Error;
 
-	constructor(value: any) {
-		this.value = value;
-		this.error = null;
+	constructor(value: any, nullable: boolean = false) {
+		if (value === null && !nullable) {
+			this.value = undefined;
+			this.error = new Error('must-be-not-a-null');
+		} else {
+			this.value = value;
+			this.error = null;
+		}
 	}
 
 	get isUndefined() {
@@ -166,8 +171,8 @@ class BooleanQuery extends QueryCore {
 	value: boolean;
 	error: Error;
 
-	constructor(value) {
-		super(value);
+	constructor(value: any, nullable: boolean = false) {
+		super(value, nullable);
 		if (!this.isEmpty && typeof value != 'boolean') {
 			this.error = new Error('must-be-a-boolean');
 		}
@@ -201,8 +206,8 @@ class NumberQuery extends QueryCore {
 	value: number;
 	error: Error;
 
-	constructor(value) {
-		super(value);
+	constructor(value: any, nullable: boolean = false) {
+		super(value, nullable);
 		if (!this.isEmpty && !Number.isFinite(value)) {
 			this.error = new Error('must-be-a-number');
 		}
@@ -273,8 +278,8 @@ class StringQuery extends QueryCore {
 	value: string;
 	error: Error;
 
-	constructor(value) {
-		super(value);
+	constructor(value: any, nullable: boolean = false) {
+		super(value, nullable);
 		if (!this.isEmpty && typeof value != 'string') {
 			this.error = new Error('must-be-a-string');
 		}
@@ -351,8 +356,8 @@ class ArrayQuery extends QueryCore {
 	value: any[];
 	error: Error;
 
-	constructor(value) {
-		super(value);
+	constructor(value: any, nullable: boolean = false) {
+		super(value, nullable);
 		if (!this.isEmpty && !Array.isArray(value)) {
 			this.error = new Error('must-be-an-array');
 		}
@@ -422,8 +427,8 @@ class IdQuery extends QueryCore {
 	value: mongo.ObjectID;
 	error: Error;
 
-	constructor(value) {
-		super(value);
+	constructor(value: any, nullable: boolean = false) {
+		super(value, nullable);
 		if (!this.isEmpty && (typeof value != 'string' || !mongo.ObjectID.isValid(value))) {
 			this.error = new Error('must-be-an-id');
 		}
@@ -457,8 +462,8 @@ class ObjectQuery extends QueryCore {
 	value: any;
 	error: Error;
 
-	constructor(value) {
-		super(value);
+	constructor(value: any, nullable: boolean = false) {
+		super(value, nullable);
 		if (!this.isEmpty && typeof value != 'object') {
 			this.error = new Error('must-be-an-object');
 		}
@@ -495,6 +500,14 @@ type It = {
 				string: () => StringQuery;
 				number: () => NumberQuery;
 				boolean: () => BooleanQuery;
+				nullable: {
+					string: () => StringQuery;
+					number: () => NumberQuery;
+					boolean: () => BooleanQuery;
+					id: () => IdQuery;
+					array: () => ArrayQuery;
+					object: () => ObjectQuery;
+				};
 			};
 			an: {
 				id: () => IdQuery;
@@ -510,6 +523,14 @@ type It = {
 		id: () => IdQuery;
 		array: () => ArrayQuery;
 		object: () => ObjectQuery;
+		nullable: {
+			string: () => StringQuery;
+			number: () => NumberQuery;
+			boolean: () => BooleanQuery;
+			id: () => IdQuery;
+			array: () => ArrayQuery;
+			object: () => ObjectQuery;
+		};
 	};
 };
 
@@ -519,7 +540,15 @@ const it = (value: any) => ({
 			a: {
 				string: () => new StringQuery(value),
 				number: () => new NumberQuery(value),
-				boolean: () => new BooleanQuery(value)
+				boolean: () => new BooleanQuery(value),
+				nullable: {
+					string: () => new StringQuery(value, true),
+					number: () => new NumberQuery(value, true),
+					boolean: () => new BooleanQuery(value, true),
+					id: () => new IdQuery(value, true),
+					array: () => new ArrayQuery(value, true),
+					object: () => new ObjectQuery(value, true)
+				}
 			},
 			an: {
 				id: () => new IdQuery(value),
@@ -534,7 +563,15 @@ const it = (value: any) => ({
 		boolean: () => new BooleanQuery(value),
 		id: () => new IdQuery(value),
 		array: () => new ArrayQuery(value),
-		object: () => new ObjectQuery(value)
+		object: () => new ObjectQuery(value),
+		nullable: {
+			string: () => new StringQuery(value, true),
+			number: () => new NumberQuery(value, true),
+			boolean: () => new BooleanQuery(value, true),
+			id: () => new IdQuery(value, true),
+			array: () => new ArrayQuery(value, true),
+			object: () => new ObjectQuery(value, true)
+		}
 	}
 });