diff --git a/jOOQ/src/main/java/org/jooq/impl/SelectQueryImpl.java b/jOOQ/src/main/java/org/jooq/impl/SelectQueryImpl.java
index f0971d48af..08c39c9a5a 100644
--- a/jOOQ/src/main/java/org/jooq/impl/SelectQueryImpl.java
+++ b/jOOQ/src/main/java/org/jooq/impl/SelectQueryImpl.java
@@ -2697,7 +2697,7 @@ final class SelectQueryImpl<R extends Record> extends AbstractResultQuery<R> imp
 
 
     private static final Set<SQLDialect> NO_SUPPORT_UNION_PARENTHESES = SQLDialect.supportedBy(SQLITE);
-    private static final Set<SQLDialect> NO_SUPPORT_CTE_IN_UNION      = SQLDialect.supportedBy(HSQLDB);
+    private static final Set<SQLDialect> NO_SUPPORT_CTE_IN_UNION      = SQLDialect.supportedBy(HSQLDB, MARIADB);
     private static final Set<SQLDialect> UNION_PARENTHESIS            = SQLDialect.supportedBy(DERBY, MARIADB, MYSQL);
 
     final boolean hasUnions() {