diff --git a/packages/bruno-app/src/components/RequestPane/Assertions/AssertionOperator/index.js b/packages/bruno-app/src/components/RequestPane/Assertions/AssertionOperator/index.js
index 068747846..0f246db7c 100644
--- a/packages/bruno-app/src/components/RequestPane/Assertions/AssertionOperator/index.js
+++ b/packages/bruno-app/src/components/RequestPane/Assertions/AssertionOperator/index.js
@@ -32,6 +32,7 @@ import lightTheme from 'themes/light';
  * isNumber    : is number
  * isString    : is string
  * isBoolean   : is boolean
+ * isArray     : is array
  */
 
 const AssertionOperator = ({ operator, onChange }) => {
@@ -61,7 +62,8 @@ const AssertionOperator = ({ operator, onChange }) => {
     'isJson',
     'isNumber',
     'isString',
-    'isBoolean'
+    'isBoolean',
+    'isArray'
   ];
 
   const handleChange = (e) => {
diff --git a/packages/bruno-app/src/components/RequestPane/Assertions/AssertionRow/index.js b/packages/bruno-app/src/components/RequestPane/Assertions/AssertionRow/index.js
index 5b27061e9..375fa0ec4 100644
--- a/packages/bruno-app/src/components/RequestPane/Assertions/AssertionRow/index.js
+++ b/packages/bruno-app/src/components/RequestPane/Assertions/AssertionRow/index.js
@@ -33,6 +33,7 @@ import { useTheme } from 'providers/Theme';
  * isNumber    : is number
  * isString    : is string
  * isBoolean   : is boolean
+ * isArray     : is array
  */
 const parseAssertionOperator = (str = '') => {
   if (!str || typeof str !== 'string' || !str.length) {
@@ -68,7 +69,8 @@ const parseAssertionOperator = (str = '') => {
     'isJson',
     'isNumber',
     'isString',
-    'isBoolean'
+    'isBoolean',
+    'isArray'
   ];
 
   const unaryOperators = [
@@ -81,7 +83,8 @@ const parseAssertionOperator = (str = '') => {
     'isJson',
     'isNumber',
     'isString',
-    'isBoolean'
+    'isBoolean',
+    'isArray'
   ];
 
   const [operator, ...rest] = str.trim().split(' ');
@@ -118,7 +121,8 @@ const isUnaryOperator = (operator) => {
     'isJson',
     'isNumber',
     'isString',
-    'isBoolean'
+    'isBoolean',
+    'isArray'
   ];
 
   return unaryOperators.includes(operator);
diff --git a/packages/bruno-js/src/runtime/assert-runtime.js b/packages/bruno-js/src/runtime/assert-runtime.js
index 36fd7c9f2..dae68fc1a 100644
--- a/packages/bruno-js/src/runtime/assert-runtime.js
+++ b/packages/bruno-js/src/runtime/assert-runtime.js
@@ -66,6 +66,7 @@ chai.use(function (chai, utils) {
  * isNumber    : is number
  * isString    : is string
  * isBoolean   : is boolean
+ * isArray     : is array
  */
 const parseAssertionOperator = (str = '') => {
   if (!str || typeof str !== 'string' || !str.length) {
@@ -101,7 +102,8 @@ const parseAssertionOperator = (str = '') => {
     'isJson',
     'isNumber',
     'isString',
-    'isBoolean'
+    'isBoolean',
+    'isArray'
   ];
 
   const unaryOperators = [
@@ -114,7 +116,8 @@ const parseAssertionOperator = (str = '') => {
     'isJson',
     'isNumber',
     'isString',
-    'isBoolean'
+    'isBoolean',
+    'isArray'
   ];
 
   const [operator, ...rest] = str.trim().split(' ');
@@ -151,7 +154,8 @@ const isUnaryOperator = (operator) => {
     'isJson',
     'isNumber',
     'isString',
-    'isBoolean'
+    'isBoolean',
+    'isArray'
   ];
 
   return unaryOperators.includes(operator);
@@ -313,6 +317,9 @@ class AssertRuntime {
           case 'isBoolean':
             expect(lhs).to.be.a('boolean');
             break;
+          case 'isArray':
+            expect(lhs).to.be.a('array');
+            break;
           default:
             expect(lhs).to.equal(rhs);
             break;