diff --git a/components/oneapi-validation/src/main/java/com/wso2telco/dep/oneapivalidation/service/impl/payment/ValidatePaymentCharge.java b/components/oneapi-validation/src/main/java/com/wso2telco/dep/oneapivalidation/service/impl/payment/ValidatePaymentCharge.java
index 35f02f6f0..287b067c9 100644
--- a/components/oneapi-validation/src/main/java/com/wso2telco/dep/oneapivalidation/service/impl/payment/ValidatePaymentCharge.java
+++ b/components/oneapi-validation/src/main/java/com/wso2telco/dep/oneapivalidation/service/impl/payment/ValidatePaymentCharge.java
@@ -141,7 +141,7 @@ public void validate(String json) throws CustomException {
                 new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL, "originalServerReferenceCode", originalServerReferenceCode),
                 new ValidationRule(ValidationRule.VALIDATION_TYPE_MANDATORY, "referenceCode", referenceCode),
                 new ValidationRule(ValidationRule.VALIDATION_TYPE_MANDATORY, "description", description),
-                new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL, "currency", currency),
+                new ValidationRule(ValidationRule.VALIDATION_TYPE_MANDATORY, "currency", currency),
                 new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL_DOUBLE_GT_ZERO, "amount", amount),
                 new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL, "clientCorrelator", clientCorrelator),
                 new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL, "onBehalfOf", onBehalfOf),