diff --git a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/query/Update.java b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/query/Update.java
index 33ea42780..6a43d42a6 100644
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/query/Update.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/query/Update.java
@@ -121,6 +121,17 @@ public class Update implements UpdateDefinition {
 		return this;
 	}
 
+
+	/**
+	 * KeysToUpdate getter
+	 *
+	 * @return keys to update.
+	 */
+	public Set<String> getKeysToUpdate() {
+        	return keysToUpdate;
+    	}
+	
+
 	/**
 	 * Update using the {@literal $setOnInsert} update modifier.
 	 *