diff --git a/README.md b/README.md
index ea08d22..4282137 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ OPTIONS
   -h, --help                             show CLI help
   -o, --outputReportDir=outputReportDir  output report directory path. default: ./sabik_report
   -v, --version                          show CLI version
-  --excludes=excludes                    exclude patterns is separated by a comma. example: *.test.ts,*.spec.ts
+  --excludes=excludes                    exclude patterns is separated by a comma. example: .test.ts$,.spec.ts$
   --matches=matches                      match patterns. example: .ts$
 ```
 
diff --git a/src/index.ts b/src/index.ts
index 7c88293..d39996c 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -19,7 +19,7 @@ class Sabik extends Command {
     }),
     excludes: flags.string({
       description:
-        'exclude patterns is separated by a comma. example: *.test.ts,*.spec.ts',
+        'exclude patterns is separated by a comma. example: .test.ts$,.spec.ts$',
     }),
     matches: flags.string({ description: 'match patterns. example: .ts$' }),
   };