diff --git a/README.md b/README.md
index 8f6cc35..b54136b 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,8 @@ jobs:
           # Any matched issue will stop detection immediately.
           # You can specify multi filters in each line.
           filter: ''
+          # Exclude keyworlds in title before detecting.
+          exclude: ''
           # Label to set, when potential duplicates are detected.
           label: potential-duplicate
           # Get issues with state to compare. Supported state: 'all', 'closed', 'open'.
diff --git a/action.yml b/action.yml
index 712cf44..e4988cf 100644
--- a/action.yml
+++ b/action.yml
@@ -8,6 +8,9 @@ inputs:
   filter:
     description: Filter issues by title.
     required: false
+  exclude:
+    description: Exclude keyworlds in title before detecting.
+    required: false
   label:
     description: Label to set, when potential duplicates are detected.
     default: potential-duplicate
diff --git a/package.json b/package.json
index 7dc7094..b8c2065 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "potential-duplicates",
   "description": "A Github Action to search for potential issue duplicates using Damerau–Levenshtein algorithm.",
-  "version": "1.0.3",
+  "version": "1.0.4",
   "main": "dist/index.js",
   "repository": "https://github.com/bubkoo/potential-duplicates",
   "author": "bubkoo <bubkoo.wy@gmail.com>",
diff --git a/src/action.ts b/src/action.ts
index cc770a1..61ace49 100644
--- a/src/action.ts
+++ b/src/action.ts
@@ -26,7 +26,10 @@ export namespace Action {
       const threshold = parseFloat(core.getInput('threshold'))
 
       for (const issue of issues) {
-        const accuracy = Algo.compare(issue.title, title)
+        const accuracy = Algo.compare(
+          Util.formatTitle(issue.title),
+          Util.formatTitle(title),
+        )
 
         core.debug(
           `${issue.title} ~ ${title} = ${parseFloat(
diff --git a/src/util.ts b/src/util.ts
index ae5412f..42dbce0 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -36,4 +36,16 @@ export namespace Util {
     }
     return true
   }
+
+  export function formatTitle(title: string) {
+    const exclude = core.getInput('exclude')
+    if (exclude) {
+      return exclude
+        .split(/[\s\n]+/)
+        .map((keyworld) => keyworld.trim())
+        .filter((keyworld) => keyworld.length > 0)
+        .reduce((memo, keyworld) => memo.replace(keyworld, ' '), title)
+    }
+    return title
+  }
 }