diff --git a/.changeset/wise-owls-sing.md b/.changeset/wise-owls-sing.md
new file mode 100644
index 00000000000..feea74dd726
--- /dev/null
+++ b/.changeset/wise-owls-sing.md
@@ -0,0 +1,5 @@
+---
+'@talend/json-schema-form-core': patch
+---
+
+TMC-27327 - Fix input number validation to display correct error message
diff --git a/packages/jsfc/src/validate.js b/packages/jsfc/src/validate.js
index 67ec600cd14..ee8651cf9c1 100644
--- a/packages/jsfc/src/validate.js
+++ b/packages/jsfc/src/validate.js
@@ -5,7 +5,7 @@ function validateTypeSpecificInput(inputType = '', event = {}) {
 	switch (inputType) {
 		case 'number':
 			// If the user types a non-integer value, the value is emptied by browser but still displayed in UI
-			if (event.target?.validity && !event.target.validity.valid) {
+			if (event.target?.validity && event.target.validity.badInput) {
 				return { valid: false, message: 'CUSTOM_ERROR_INVALID_INPUT' };
 			}
 			break;
diff --git a/packages/jsfc/src/validate.test.js b/packages/jsfc/src/validate.test.js
index e6c61b1c605..1773b74840c 100644
--- a/packages/jsfc/src/validate.test.js
+++ b/packages/jsfc/src/validate.test.js
@@ -24,7 +24,7 @@ describe('validate.js', () => {
 		it('should return an error object with a message "CUSTOM_ERROR_INVALID_INPUT" when the integer value is not valid', () => {
 			let value = 'stringValue';
 			const testForm = { type: 'number', key: ['hero'], schema: { type: 'number' } };
-			const event = { target: { validity: { valid: false } } };
+			const event = { target: { validity: { badInput: true } } };
 			let result = validate(testForm, value, event);
 			expect(result.error.message).toBe('CUSTOM_ERROR_INVALID_INPUT');
 		});