diff --git a/CHANGELOG.md b/CHANGELOG.md
index 991a96a..bab751d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 3.6.1
+
+- added validation on field `publisher` that required when settings `sign_msix: false` ([#126](https://github.com/YehudaKremer/msix/issues/126))
+
 ## 3.6.0
 
 - added [apps for websites](https://docs.microsoft.com/en-us/windows/uwp/launch-resume/web-to-app-linking) ([#125](https://github.com/YehudaKremer/msix/pull/125))
diff --git a/README.md b/README.md
index 3fc8dda..dda1a4f 100644
--- a/README.md
+++ b/README.md
@@ -101,7 +101,7 @@ See [Configurations Examples And Use Cases].
 | `certificate_password`   | `--certificate-password` `-p`        | Password for the certificate.                                                                                                                         | `1234`                                                                                          |
 | `publisher`              | `--publisher` `-b`                   | The `Subject` value in the certificate.                                                                                                               | `CN=BF212345-5644-46DF-8668-014043C1B138` or `CN=Contoso Software, O=Contoso Corporation, C=US` |
 | `signtool_options`       | `--signtool-options`                 | Options to be provided to the `signtool` for app signing (see below.)                                                                                 | `/v /fd SHA256 /f C:/Users/me/Desktop/my.cer`                                                   |
-| `sign_msix`    | `--sign-msix <true/false>` | If `false`, don't sign the msix file, default is `true`.                                                                                         | `true`                                                                                          |
+| `sign_msix`    | `--sign-msix <true/false>` | If `false`, don't sign the msix file, default is `true`.<br />Note: when **false**, `publisher` is Required.                                                                                         | `true`                                                                                          |
 | `install_certificate`    | `--install-certificate <true/false>` | If `false`, don't try to install the certificate, default is `true`.                                                                                         | `true`                                                                                          |
 
 </details>
diff --git a/example/README.md b/example/README.md
index 3a8c6b9..d262b25 100644
--- a/example/README.md
+++ b/example/README.md
@@ -45,6 +45,14 @@ msix_config:
 ```
 Note: The main app version will be used as a basis for the MSIX version (`1.3.2` to `1.3.2.0`)
 
+###### Without signing
+
+```yaml
+msix_config:
+  publisher: CN=PublisherName, O=Msix Testing... # required
+  sign_msix: false
+```
+
 ###### With Metadata:
 
 ```yaml
diff --git a/lib/src/configuration.dart b/lib/src/configuration.dart
index 8b00828..d094d26 100644
--- a/lib/src/configuration.dart
+++ b/lib/src/configuration.dart
@@ -195,6 +195,11 @@ class Configuration {
         publisherName = identityName;
       }
     }
+    if (signMsix == false && publisher.isNullOrEmpty) {
+      _logger.stderr(
+          'when sign_msix is false, you must provide the publisher value at "msix_config: publisher" in the pubspec.yaml file');
+      exit(-1);
+    }
     if (store && publisher.isNullOrEmpty) {
       _logger.stderr(
           'publisher is empty, check "msix_config: publisher" at pubspec.yaml');
diff --git a/pubspec.yaml b/pubspec.yaml
index 425fe43..b9bad2c 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: msix
 description: A command-line tool that create Msix installer from your flutter windows-build files.
-version: 3.6.0
+version: 3.6.1
 maintainer: Yehuda Kremer (yehudakremer@gmail.com)
 homepage: https://github.com/YehudaKremer/msix