diff --git a/src/util.ts b/src/util.ts
index aaea279..3b8767a 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -12,6 +12,7 @@ export interface Config {
   input_body?: string;
   input_body_path?: string;
   input_files?: string[];
+  input_filelist?: string;
   input_draft?: boolean;
   input_prerelease?: boolean;
   input_fail_on_unmatched_files?: boolean;
@@ -50,6 +51,18 @@ export const parseInputFiles = (files: string): string[] => {
   );
 };
 
+export const parseInputListfile = (filelist: string): string[] => {
+  files = readFileSync(filelist).toString("utf8"))
+  return files.split(/\r?\n/).reduce<string[]>(
+    (acc, line) =>
+      acc
+        .concat(line.split(","))
+        .filter((pat) => pat)
+        .map((pat) => pat.trim()),
+    []
+  );
+};
+
 export const parseConfig = (env: Env): Config => {
   return {
     github_token: env.GITHUB_TOKEN || env.INPUT_TOKEN || "",
@@ -60,6 +73,7 @@ export const parseConfig = (env: Env): Config => {
     input_body: env.INPUT_BODY,
     input_body_path: env.INPUT_BODY_PATH,
     input_files: parseInputFiles(env.INPUT_FILES || ""),
+    input_filelist: parseInputListfile(env.INPUT_FILELIST || ""),
     input_draft: env.INPUT_DRAFT ? env.INPUT_DRAFT === "true" : undefined,
     input_prerelease: env.INPUT_PRERELEASE
       ? env.INPUT_PRERELEASE == "true"