diff --git a/data/src/main/java/org/springframework/security/data/repository/query/SecurityEvaluationContextExtension.java b/data/src/main/java/org/springframework/security/data/repository/query/SecurityEvaluationContextExtension.java
index f8138fb250..936ccf6f25 100644
--- a/data/src/main/java/org/springframework/security/data/repository/query/SecurityEvaluationContextExtension.java
+++ b/data/src/main/java/org/springframework/security/data/repository/query/SecurityEvaluationContextExtension.java
@@ -103,7 +103,7 @@ public class SecurityEvaluationContextExtension
 	}
 
 	@Override
-	public Object getRootObject() {
+	public SecurityExpressionRoot getRootObject() {
 		Authentication authentication = getAuthentication();
 		return new SecurityExpressionRoot(authentication) {
 		};