diff --git a/core/pom.xml b/core/pom.xml
index a356273..c3718bb 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -16,4 +16,21 @@
         <maven.compiler.target>17</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
+
+    <build>
+        <plugins>
+            <plugin><!-- generate tests jar so that test utils can be used in downstream projects -->
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <version>3.2.0</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>test-jar</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
 </project>
\ No newline at end of file
diff --git a/migration-creator/pom.xml b/migration-creator/pom.xml
index 6730790..4fbbb5c 100644
--- a/migration-creator/pom.xml
+++ b/migration-creator/pom.xml
@@ -23,5 +23,12 @@
             <artifactId>core</artifactId>
             <version>${project.parent.version}</version>
         </dependency>
+        <dependency>
+            <groupId>jef</groupId>
+            <artifactId>core</artifactId>
+            <version>${project.parent.version}</version>
+            <type>test-jar</type>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 </project>
\ No newline at end of file
diff --git a/migration-creator/src/main/java/jef/model/migration/creator/MigrationCreator.java b/migration-creator/src/main/java/jef/model/migration/creator/MigrationCreator.java
index 949e28a..3e6664a 100644
--- a/migration-creator/src/main/java/jef/model/migration/creator/MigrationCreator.java
+++ b/migration-creator/src/main/java/jef/model/migration/creator/MigrationCreator.java
@@ -251,6 +251,7 @@ public class MigrationCreator {
                 if (fromField == null) {
                     handledTo.add(toField);
                     steps.add(new AddFieldOperation.Builder(toField.getEntity().getName(), toField.getName())
+                                      .sqlType(getSqlType(toField))
                                       .notNull(toField.isNotNull()));
                 }
             }
diff --git a/migration-creator/src/test/java/jef/model/migration/creator/MigrationCreatorTestBase.java b/migration-creator/src/test/java/jef/model/migration/creator/MigrationCreatorTestBase.java
index 5ff1ff5..ea35459 100644
--- a/migration-creator/src/test/java/jef/model/migration/creator/MigrationCreatorTestBase.java
+++ b/migration-creator/src/test/java/jef/model/migration/creator/MigrationCreatorTestBase.java
@@ -1,7 +1,11 @@
 package jef.model.migration.creator;
 
 import jef.model.DbContext;
+import jef.model.DbEntityBuilder;
+import jef.model.DbFieldBuilder;
 import jef.model.ModelBuilder;
+import jef.platform.base.SqlTypeMapper;
+import jef.serializable.SerializableObject;
 
 import java.io.File;
 import java.net.URL;
@@ -14,6 +18,7 @@ import java.util.concurrent.TimeUnit;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
+import static jef.model.ModelBuilderCloneTest.debugHelper;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class MigrationCreatorTestBase {
@@ -47,6 +52,8 @@ public class MigrationCreatorTestBase {
             compile(packageName, className, snapshotJava);
             var clazz = (Class<? extends DbContext>) loadClass(packageName, className);
             var mb = ModelBuilder.from(clazz);
+            applySqlTypes(mb);
+            debugHelper(from, mb);
             assertEquals(from, mb);
         } catch (AssertionError | RuntimeException e) {
             throw e;
@@ -62,6 +69,8 @@ public class MigrationCreatorTestBase {
             compile(packageName, className, snapshotJava);
             var clazz = (Class<? extends DbContext>) loadClass(packageName, className);
             var mb = ModelBuilder.from(clazz);
+            applySqlTypes(mb);
+            debugHelper(to, mb);
             assertEquals(to, mb);
         } catch (AssertionError | RuntimeException e) {
             throw e;
@@ -70,6 +79,16 @@ public class MigrationCreatorTestBase {
         }
     }
 
+    private void applySqlTypes(ModelBuilder mb) {
+        for (DbEntityBuilder<? extends SerializableObject> entity : mb.entities()) {
+            for (DbFieldBuilder<?> field : entity.fields()) {
+                if (field.getField().getSqlType() == null) {
+                    field.getField().setSqlType(new SqlTypeMapper().map(field.getField().getTypeName()).orElseThrow());
+                }
+            }
+        }
+    }
+
     private File compile(String packageName, String className, String java) {
         try {//src
             File srcdir = new File(getSourcesFilesDir(), packageName.replace(".", File.separator));