diff --git a/modules/core/src/com/haulmont/cuba/core/sys/EntityManagerImpl.java b/modules/core/src/com/haulmont/cuba/core/sys/EntityManagerImpl.java
index 1a2e1211a9..1c91fef60f 100644
--- a/modules/core/src/com/haulmont/cuba/core/sys/EntityManagerImpl.java
+++ b/modules/core/src/com/haulmont/cuba/core/sys/EntityManagerImpl.java
@@ -443,7 +443,7 @@ public class EntityManagerImpl implements EntityManager {
             for (MetaProperty property : metadata.getClassNN(entity.getClass()).getProperties()) {
                 if (metadata.getTools().isNotPersistent(property) && !property.isReadOnly()) {
                     // copy using reflection to avoid executing getter/setter code
-                    Field field = FieldUtils.getDeclaredField(entity.getClass(), property.getName(), true);
+                    Field field = FieldUtils.getField(entity.getClass(), property.getName(), true);
                     if (field != null) {
                         try {
                             Object value = FieldUtils.readField(field, entity);
diff --git a/modules/core/test/com/haulmont/cuba/testmodel/not_persistent/BaseEntityWithNonPersistentProperty.java b/modules/core/test/com/haulmont/cuba/testmodel/not_persistent/BaseEntityWithNonPersistentProperty.java
new file mode 100644
index 0000000000..87074fc553
--- /dev/null
+++ b/modules/core/test/com/haulmont/cuba/testmodel/not_persistent/BaseEntityWithNonPersistentProperty.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2008-2018 Haulmont.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.haulmont.cuba.testmodel.not_persistent;
+
+import com.haulmont.chile.core.annotations.MetaProperty;
+import com.haulmont.cuba.core.entity.StandardEntity;
+
+import javax.persistence.MappedSuperclass;
+import javax.persistence.Transient;
+
+@MappedSuperclass
+public class BaseEntityWithNonPersistentProperty extends StandardEntity {
+
+    @Transient
+    @MetaProperty
+    protected String reason;
+
+    public String getReason() {
+        return reason;
+    }
+
+    public void setReason(String reason) {
+        this.reason = reason;
+    }
+}
diff --git a/modules/core/test/com/haulmont/cuba/testmodel/not_persistent/CustomerWithNonPersistentRef.java b/modules/core/test/com/haulmont/cuba/testmodel/not_persistent/CustomerWithNonPersistentRef.java
index 82ea2c86ee..e7641924d3 100644
--- a/modules/core/test/com/haulmont/cuba/testmodel/not_persistent/CustomerWithNonPersistentRef.java
+++ b/modules/core/test/com/haulmont/cuba/testmodel/not_persistent/CustomerWithNonPersistentRef.java
@@ -18,17 +18,14 @@ package com.haulmont.cuba.testmodel.not_persistent;
 
 import com.haulmont.chile.core.annotations.MetaProperty;
 import com.haulmont.chile.core.annotations.NamePattern;
-import com.haulmont.chile.core.datatypes.impl.EnumUtils;
-import com.haulmont.cuba.core.entity.StandardEntity;
 import com.haulmont.cuba.testmodel.primary_keys.EntityKey;
-import com.haulmont.cuba.testmodel.sales.Status;
 
 import javax.persistence.*;
 
 @Entity(name = "test$CustomerWithNonPersistentRef")
 @Table(name = "TEST_CUSTOMER_W_NPERS_REF")
 @NamePattern("%s|name")
-public class CustomerWithNonPersistentRef extends StandardEntity {
+public class CustomerWithNonPersistentRef extends BaseEntityWithNonPersistentProperty {
 
     @Column(name = "NAME")
     private String name;
diff --git a/modules/core/test/cuba-test-persistence.xml b/modules/core/test/cuba-test-persistence.xml
index aa4969c572..c1ba54a72d 100644
--- a/modules/core/test/cuba-test-persistence.xml
+++ b/modules/core/test/cuba-test-persistence.xml
@@ -95,6 +95,7 @@
         <class>com.haulmont.cuba.testmodel.jpa_cascade.JpaCascadeBar</class>
         <class>com.haulmont.cuba.testmodel.jpa_cascade.JpaCascadeItem</class>
 
+        <class>com.haulmont.cuba.testmodel.not_persistent.BaseEntityWithNonPersistentProperty</class>
         <class>com.haulmont.cuba.testmodel.not_persistent.CustomerWithNonPersistentRef</class>
 
         <class>com.haulmont.cuba.testmodel.localdatetime.LocalDateTimeEntity</class>
diff --git a/modules/core/test/spec/cuba/core/entity_manager/EntityManagerTest.groovy b/modules/core/test/spec/cuba/core/entity_manager/EntityManagerTest.groovy
new file mode 100644
index 0000000000..9937a2974b
--- /dev/null
+++ b/modules/core/test/spec/cuba/core/entity_manager/EntityManagerTest.groovy
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2008-2018 Haulmont.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package spec.cuba.core.entity_manager
+
+import com.haulmont.cuba.core.global.AppBeans
+import com.haulmont.cuba.core.global.DataManager
+import com.haulmont.cuba.testmodel.not_persistent.CustomerWithNonPersistentRef
+import com.haulmont.cuba.testmodel.not_persistent.TestNotPersistentEntity
+import com.haulmont.cuba.testmodel.primary_keys.EntityKey
+import com.haulmont.cuba.testsupport.TestContainer
+import org.junit.ClassRule
+import spock.lang.Shared
+import spock.lang.Specification
+
+class EntityManagerTest extends Specification {
+
+    @Shared @ClassRule
+    public TestContainer cont = TestContainer.Common.INSTANCE
+
+    private DataManager dataManager
+
+    void setup() {
+        dataManager = AppBeans.get(DataManager)
+    }
+
+    def "non-persistent property from superclass is copied back after merge #1150"() {
+
+        EntityKey entityKey = new EntityKey(tenant: 1, entityId: 10)
+        TestNotPersistentEntity notPersistentEntity = new TestNotPersistentEntity(name: 'entity1', info: 'something')
+        CustomerWithNonPersistentRef customer = new CustomerWithNonPersistentRef(reason: 'some reason', name: 'cust1', entityKey: entityKey, notPersistentEntity: notPersistentEntity)
+
+        when:
+
+        CustomerWithNonPersistentRef customer1 = dataManager.commit(customer)
+
+        then:
+
+        customer1.name == 'cust1'
+        customer1.entityKey.tenant == 1
+        customer1.entityKey.entityId == 10
+        customer1.notPersistentEntity.name == 'entity1'
+        customer1.notPersistentEntity.info == 'something'
+        customer1.reason == 'some reason'
+
+        when:
+
+        customer1.name = 'cust11'
+        customer1.reason = 'reason11'
+        CustomerWithNonPersistentRef customer2 = dataManager.commit(customer1)
+
+        then:
+
+        customer2.name == 'cust11'
+        customer2.entityKey.tenant == 1
+        customer2.entityKey.entityId == 10
+        customer2.notPersistentEntity.name == 'entity1'
+        customer2.notPersistentEntity.info == 'something'
+        customer2.reason == 'reason11'
+
+        cleanup:
+
+        cont.deleteRecord(customer)
+    }
+}