diff --git a/README.md b/README.md
index c389137..73eaee6 100644
--- a/README.md
+++ b/README.md
@@ -6,12 +6,12 @@ This service is part of the [Payment Hub](https://github.com/DEFRA/ffc-pay-core)
 
 ## Validation
 
-There are four files that make up a payment batch.  All four are required before the batch can be validated.
+There are four files that make up a payment batch. All four are required before the batch can be validated.
 
 ### Required files
 
-| File | Description | Mask |
-| --- | --- | --- |
+| File               | Description                               | Mask                 |
+| ------------------ | ----------------------------------------- | -------------------- |
 | Payment batch file | Contains a collection of payment requests | `PENDING_{name}.dat` |
 
 - payment batch file, `{name}.dat`
@@ -19,7 +19,6 @@ There are four files that make up a payment batch.  All four are required before
 - checksum file, `{name}.txt`
 - checksum control file, `CTL_{name}.txt`
 
-
 On successful validation, `PENDING_` is added to all filenames and all but the payment batch file are moved to the `inbound` virtual directory.
 
 ## Prerequisites
@@ -28,6 +27,7 @@ On successful validation, `PENDING_` is added to all filenames and all but the p
 - Docker Compose
 
 Optional:
+
 - Kubernetes
 - Helm
 
diff --git a/app/config/scheme.js b/app/config/scheme.js
index 8634ee7..4261ca7 100644
--- a/app/config/scheme.js
+++ b/app/config/scheme.js
@@ -98,8 +98,8 @@ const schema = Joi.object({
   imps: Joi.object({
     name: Joi.string().default(IMPS),
     fileMasks: Joi.object({
-      inbound: Joi.array().items(Joi.string()).default([/^CTL_FIN_IMPS_A[P|R]_\d*.INT$/]),
-      outbound: Joi.array().items(Joi.string()).default([/^CTL_RET_IMPS_A[P|R]_\d*.INT$/])
+      inbound: Joi.array().items(Joi.string()).default([/^CTL_FIN_IMPS_A[P|R]_\d*\.INT$/]),
+      outbound: Joi.array().items(Joi.string()).default([/^CTL_RET_IMPS_A[P|R]_\d*\.INT$/])
     }),
     server: Joi.string().default(CALLISTO),
     directories: Joi.object({
diff --git a/package-lock.json b/package-lock.json
index c13f1ea..8ca9bc1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "ffc-pay-gateway",
-  "version": "1.4.16",
+  "version": "1.4.17",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "ffc-pay-gateway",
-      "version": "1.4.16",
+      "version": "1.4.17",
       "license": "OGL-UK-3.0",
       "dependencies": {
         "@azure/identity": "4.2.1",
diff --git a/package.json b/package.json
index 97572ef..09f29ca 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ffc-pay-gateway",
-  "version": "1.4.16",
+  "version": "1.4.17",
   "description": "Managed Gateway integration",
   "homepage": "https://github.com/DEFRA/ffc-pay-gateway",
   "main": "app/index.js",