diff --git a/README.md b/README.md
index b587c0c..34eaf86 100644
--- a/README.md
+++ b/README.md
@@ -85,6 +85,7 @@ Any field not in this list will be ignored. Any field not matching the required
 - "maxFileVersion": number _(target only devices with this version or below)_
 - "minFileVersion": number _(target only devices with this version or above)_
 - "modelId": string _(target only devices with this model ID)_
+- "customParseLogic": string _(custom parsing logic used for this image)_
 
 ###### For record purpose
 
diff --git a/src/common.ts b/src/common.ts
index 1f445a3..6ae5893 100644
--- a/src/common.ts
+++ b/src/common.ts
@@ -308,6 +308,14 @@ export function getValidMetas(metas: Partial<ExtraMetas & ExtraMetasWithFileName
         validMetas.maxFileVersion = metas.maxFileVersion;
     }
 
+    if (metas.customParseLogic != null) {
+        if (metas.customParseLogic === "telinkEncrypted") {
+            throw new Error(`Invalid value for 'customParseLogic', expected 'telinkEncrypted' type.`);
+        }
+
+        validMetas.customParseLogic = metas.customParseLogic;
+    }
+
     if (metas.minFileVersion != null) {
         if (typeof metas.minFileVersion !== "number") {
             throw new Error(`Invalid format for 'minFileVersion', expected 'number' type.`);
diff --git a/src/types.ts b/src/types.ts
index a634e3e..9a7055b 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -61,6 +61,7 @@ export interface RepoImageMeta extends ImageInfo, ImageMeta {
     maxFileVersion?: number;
     originalUrl?: string;
     releaseNotes?: string;
+    customParseLogic?: string;
 }
 
 export type ExtraMetas = Omit<