diff --git a/projects/Mockito/10/org/mockito/internal/stubbing/defaultanswers/ReturnsDeepStubs.java b/projects/Mockito/10/org/mockito/internal/stubbing/defaultanswers/ReturnsDeepStubs.java
index e2ded55..3bb7636 100644
--- a/projects/Mockito/10/org/mockito/internal/stubbing/defaultanswers/ReturnsDeepStubs.java
+++ b/projects/Mockito/10/org/mockito/internal/stubbing/defaultanswers/ReturnsDeepStubs.java
@@ -14,6 +14,7 @@
 import org.mockito.internal.util.MockUtil;
 import org.mockito.internal.util.reflection.GenericMetadataSupport;
 import org.mockito.invocation.InvocationOnMock;
+import org.mockito.mock.MockCreationSettings;
 import org.mockito.stubbing.Answer;
 
 import java.io.IOException;
@@ -68,7 +69,7 @@ private Object deepStub(InvocationOnMock invocation, GenericMetadataSupport retu
 
         // record deep stub answer
         return recordDeepStubAnswer(
-                newDeepStubMock(returnTypeGenericMetadata),
+                newDeepStubMock(returnTypeGenericMetadata, invocation.getMock()),
                 container
         );
     }
@@ -84,22 +85,26 @@ private Object deepStub(InvocationOnMock invocation, GenericMetadataSupport retu
      * @param parentMock The parent of the current deep stub mock.
      * @return The mock
      */
-    private Object newDeepStubMock(GenericMetadataSupport returnTypeGenericMetadata) {
+    private Object newDeepStubMock(GenericMetadataSupport returnTypeGenericMetadata, Object parentMock) {
+        MockCreationSettings parentMockSettings = new MockUtil().getMockSettings(parentMock);
         return mockitoCore().mock(
                 returnTypeGenericMetadata.rawType(),
-                withSettingsUsing(returnTypeGenericMetadata)
+                withSettingsUsing(returnTypeGenericMetadata, parentMockSettings)
         );
     }
 
-    private MockSettings withSettingsUsing(GenericMetadataSupport returnTypeGenericMetadata) {
+    private MockSettings withSettingsUsing(GenericMetadataSupport returnTypeGenericMetadata, MockCreationSettings parentMockSettings) {
         MockSettings mockSettings = returnTypeGenericMetadata.hasRawExtraInterfaces() ?
                 withSettings().extraInterfaces(returnTypeGenericMetadata.rawExtraInterfaces())
                 : withSettings();
 
-        return mockSettings.serializable()
+        return propagateSerializationSettings(mockSettings, parentMockSettings)
                 .defaultAnswer(returnsDeepStubsAnswerUsing(returnTypeGenericMetadata));
     }
 
+    private MockSettings propagateSerializationSettings(MockSettings mockSettings, MockCreationSettings parentMockSettings) {
+        return mockSettings.serializable(parentMockSettings.getSerializableMode());
+    }
 
     private ReturnsDeepStubs returnsDeepStubsAnswerUsing(final GenericMetadataSupport returnTypeGenericMetadata) {
         return new ReturnsDeepStubsSerializationFallback(returnTypeGenericMetadata);