diff --git a/hibernate-core/src/main/java/org/hibernate/tool/schema/internal/StandardTableExporter.java b/hibernate-core/src/main/java/org/hibernate/tool/schema/internal/StandardTableExporter.java
index 25f2b450b5..636b8ce13e 100644
--- a/hibernate-core/src/main/java/org/hibernate/tool/schema/internal/StandardTableExporter.java
+++ b/hibernate-core/src/main/java/org/hibernate/tool/schema/internal/StandardTableExporter.java
@@ -17,7 +17,9 @@ import org.hibernate.boot.model.relational.QualifiedNameParser;
 import org.hibernate.dialect.Dialect;
 import org.hibernate.engine.jdbc.env.spi.JdbcEnvironment;
 import org.hibernate.mapping.Column;
+import org.hibernate.mapping.Constraint;
 import org.hibernate.mapping.Table;
+import org.hibernate.mapping.UniqueKey;
 import org.hibernate.tool.schema.spi.Exporter;
 
 /**
@@ -105,6 +107,16 @@ public class StandardTableExporter implements Exporter<Table> {
 
 			}
 
+			if ( col.isUnique() ) {
+				String keyName = Constraint.generateName( "UK_", table, col );
+				UniqueKey uk = table.getOrCreateUniqueKey( keyName );
+				uk.addColumn( col );
+				buf.append(
+						dialect.getUniqueDelegate()
+								.getColumnDefinitionUniquenessFragment( col )
+				);
+			}
+
 			if ( col.getCheckConstraint() != null && dialect.supportsColumnCheck() ) {
 				buf.append( " check (" )
 						.append( col.getCheckConstraint() )