diff --git a/src/Squidex.Domain.Apps.Entities/Contents/Guards/GuardContent.cs b/src/Squidex.Domain.Apps.Entities/Contents/Guards/GuardContent.cs
index 8c02f6d88..c40c5e629 100644
--- a/src/Squidex.Domain.Apps.Entities/Contents/Guards/GuardContent.cs
+++ b/src/Squidex.Domain.Apps.Entities/Contents/Guards/GuardContent.cs
@@ -25,7 +25,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guards
                 ValidateData(command, e);
             });
 
-            if (schema.IsSingleton && command.ContentId != Guid.Empty)
+            if (schema.Singleton && command.ContentId != Guid.Empty)
             {
                 throw new DomainException("Singleton content cannot be created.");
             }
@@ -65,7 +65,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guards
         {
             Guard.NotNull(command, nameof(command));
 
-            if (schema.IsSingleton && command.Status != Status.Published)
+            if (schema.Singleton && command.Status != Status.Published)
             {
                 throw new DomainException("Singleton content archived or unpublished.");
             }
@@ -102,7 +102,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guards
         {
             Guard.NotNull(command, nameof(command));
 
-            if (schema.IsSingleton)
+            if (schema.Singleton)
             {
                 throw new DomainException("Singleton content cannot be deleted.");
             }
diff --git a/src/Squidex.Domain.Apps.Entities/Schemas/ISchemaEntity.cs b/src/Squidex.Domain.Apps.Entities/Schemas/ISchemaEntity.cs
index 7f5ccf51e..58233780d 100644
--- a/src/Squidex.Domain.Apps.Entities/Schemas/ISchemaEntity.cs
+++ b/src/Squidex.Domain.Apps.Entities/Schemas/ISchemaEntity.cs
@@ -23,9 +23,9 @@ namespace Squidex.Domain.Apps.Entities.Schemas
 
         string Category { get; }
 
-        bool IsPublished { get; }
+        bool Singleton { get; }
 
-        bool IsSingleton { get; }
+        bool IsPublished { get; }
 
         bool IsDeleted { get; }
 
diff --git a/src/Squidex.Domain.Apps.Entities/Schemas/State/SchemaState.cs b/src/Squidex.Domain.Apps.Entities/Schemas/State/SchemaState.cs
index 01bd7a7d1..070ca131d 100644
--- a/src/Squidex.Domain.Apps.Entities/Schemas/State/SchemaState.cs
+++ b/src/Squidex.Domain.Apps.Entities/Schemas/State/SchemaState.cs
@@ -38,7 +38,7 @@ namespace Squidex.Domain.Apps.Entities.Schemas.State
         public bool IsDeleted { get; set; }
 
         [JsonProperty]
-        public bool IsSingleton { get; set; }
+        public bool Singleton { get; set; }
 
         [JsonProperty]
         public string ScriptQuery { get; set; }
@@ -68,7 +68,7 @@ namespace Squidex.Domain.Apps.Entities.Schemas.State
         {
             Name = @event.Name;
 
-            IsSingleton = @event.Singleton;
+            Singleton = @event.Singleton;
 
             var schema = new Schema(@event.Name);
 
diff --git a/tests/Squidex.Domain.Apps.Entities.Tests/Contents/Guard/GuardContentTests.cs b/tests/Squidex.Domain.Apps.Entities.Tests/Contents/Guard/GuardContentTests.cs
index 56357383f..a69db5009 100644
--- a/tests/Squidex.Domain.Apps.Entities.Tests/Contents/Guard/GuardContentTests.cs
+++ b/tests/Squidex.Domain.Apps.Entities.Tests/Contents/Guard/GuardContentTests.cs
@@ -35,7 +35,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
         [Fact]
         public void CanCreate_should_throw_exception_if_singleton()
         {
-            A.CallTo(() => schema.IsSingleton).Returns(true);
+            A.CallTo(() => schema.Singleton).Returns(true);
 
             var command = new CreateContent { Data = new NamedContentData() };
 
@@ -45,7 +45,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
         [Fact]
         public void CanCreate_should_not_throw_exception_if_singleton_and_id_empty()
         {
-            A.CallTo(() => schema.IsSingleton).Returns(true);
+            A.CallTo(() => schema.Singleton).Returns(true);
 
             var command = new CreateContent { Data = new NamedContentData(), ContentId = Guid.Empty };
 
@@ -133,7 +133,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
         [Fact]
         public void CanChangeContentStatus_should_throw_exception_if_singleton()
         {
-            A.CallTo(() => schema.IsSingleton).Returns(true);
+            A.CallTo(() => schema.Singleton).Returns(true);
 
             var command = new ChangeContentStatus { Status = Status.Draft };
 
@@ -143,7 +143,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
         [Fact]
         public void CanChangeContentStatus_should_not_throw_exception_if_publishing_with_pending_changes()
         {
-            A.CallTo(() => schema.IsSingleton).Returns(true);
+            A.CallTo(() => schema.Singleton).Returns(true);
 
             var command = new ChangeContentStatus { Status = Status.Published };
 
@@ -177,7 +177,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
         [Fact]
         public void CanDelete_should_throw_exception_if_singleton()
         {
-            A.CallTo(() => schema.IsSingleton).Returns(true);
+            A.CallTo(() => schema.Singleton).Returns(true);
 
             var command = new DeleteContent();
 
diff --git a/tests/Squidex.Domain.Apps.Entities.Tests/Schemas/SchemaGrainTests.cs b/tests/Squidex.Domain.Apps.Entities.Tests/Schemas/SchemaGrainTests.cs
index cd880f849..b2f00be97 100644
--- a/tests/Squidex.Domain.Apps.Entities.Tests/Schemas/SchemaGrainTests.cs
+++ b/tests/Squidex.Domain.Apps.Entities.Tests/Schemas/SchemaGrainTests.cs
@@ -72,7 +72,7 @@ namespace Squidex.Domain.Apps.Entities.Schemas
 
             Assert.Equal(SchemaName, sut.Snapshot.Name);
             Assert.Equal(SchemaName, sut.Snapshot.SchemaDef.Name);
-            Assert.True(sut.Snapshot.IsSingleton);
+            Assert.True(sut.Snapshot.Singleton);
 
             LastEvents
                 .ShouldHaveSameEvents(