diff --git a/hibernate-core/src/main/java/org/hibernate/query/internal/NativeQueryImpl.java b/hibernate-core/src/main/java/org/hibernate/query/internal/NativeQueryImpl.java
index abe7ac5686..ec4dc2f87b 100644
--- a/hibernate-core/src/main/java/org/hibernate/query/internal/NativeQueryImpl.java
+++ b/hibernate-core/src/main/java/org/hibernate/query/internal/NativeQueryImpl.java
@@ -492,9 +492,9 @@ public class NativeQueryImpl<T> extends AbstractProducedQuery<T> implements Nati
 		}
 
 		if ( value instanceof Collection ) {
-//			if ( querySpaces == null ) {
-//				querySpaces = new ArrayList<>();
-//			}
+			if ( querySpaces == null ) {
+				querySpaces = new ArrayList<>();
+			}
 			querySpaces.addAll( (Collection<String>) value );
 			return true;
 		}