diff --git a/gradle/changelog/repository_permission_without_name.yaml b/gradle/changelog/repository_permission_without_name.yaml
new file mode 100644
index 0000000000..fae2f6e73d
--- /dev/null
+++ b/gradle/changelog/repository_permission_without_name.yaml
@@ -0,0 +1,2 @@
+- type: fixed
+  description: Creating a repository permission without a name breaks the repository ([#2126](https://github.com/scm-manager/scm-manager/pull/2126))
diff --git a/scm-webapp/src/main/java/sonia/scm/api/v2/resources/RepositoryPermissionDto.java b/scm-webapp/src/main/java/sonia/scm/api/v2/resources/RepositoryPermissionDto.java
index 05c23f0d73..75dc0f11f9 100644
--- a/scm-webapp/src/main/java/sonia/scm/api/v2/resources/RepositoryPermissionDto.java
+++ b/scm-webapp/src/main/java/sonia/scm/api/v2/resources/RepositoryPermissionDto.java
@@ -33,6 +33,7 @@ import lombok.ToString;
 import javax.validation.constraints.NotEmpty;
 import sonia.scm.util.ValidationUtil;
 
+import javax.validation.constraints.NotNull;
 import javax.validation.constraints.Pattern;
 
 import java.util.Collection;
@@ -43,6 +44,7 @@ public class RepositoryPermissionDto extends HalRepresentation implements Update
 
   public static final String GROUP_PREFIX = "@";
 
+  @NotNull
   @Pattern(regexp = ValidationUtil.REGEX_NAME)
   private String name;
 
diff --git a/scm-webapp/src/test/java/sonia/scm/api/v2/resources/RepositoryPermissionRootResourceTest.java b/scm-webapp/src/test/java/sonia/scm/api/v2/resources/RepositoryPermissionRootResourceTest.java
index d929bd4ebf..ec2f35402a 100644
--- a/scm-webapp/src/test/java/sonia/scm/api/v2/resources/RepositoryPermissionRootResourceTest.java
+++ b/scm-webapp/src/test/java/sonia/scm/api/v2/resources/RepositoryPermissionRootResourceTest.java
@@ -275,6 +275,21 @@ public class RepositoryPermissionRootResourceTest extends RepositoryTestBase {
     assertEquals(400, response.getStatus());
   }
 
+  @Test
+  public void shouldGet400OnCreatingNewPermissionWithoutName() throws URISyntaxException {
+    createUserWithRepository("user");
+    String permissionJson = "{ \"verbs\": [\"*\"] }";
+    MockHttpRequest request = MockHttpRequest
+      .post("/" + RepositoryRootResource.REPOSITORIES_PATH_V2 + PATH_OF_ALL_PERMISSIONS)
+      .content(permissionJson.getBytes())
+      .contentType(VndMediaType.REPOSITORY_PERMISSION);
+    MockHttpResponse response = new MockHttpResponse();
+
+    dispatcher.invoke(request, response);
+
+    assertEquals(400, response.getStatus());
+  }
+
   @Test
   public void shouldGetCreatedPermissions() throws URISyntaxException {
     createUserWithRepositoryAndPermissions(TEST_PERMISSIONS, PERMISSION_WRITE);