diff --git a/audit/src/org/labkey/audit/AuditModule.java b/audit/src/org/labkey/audit/AuditModule.java
index 5be6326ee39..ac6788c32d2 100644
--- a/audit/src/org/labkey/audit/AuditModule.java
+++ b/audit/src/org/labkey/audit/AuditModule.java
@@ -19,6 +19,13 @@
 import org.jetbrains.annotations.NotNull;
 import org.labkey.api.audit.AuditLogService;
 import org.labkey.api.audit.provider.SiteSettingsAuditProvider;
+import org.labkey.api.data.ColumnInfo;
+import org.labkey.api.data.JdbcType;
+import org.labkey.api.data.SQLFragment;
+import org.labkey.api.data.TableInfo;
+import org.labkey.api.data.WrappedColumn;
+import org.labkey.api.migration.DatabaseMigrationService;
+import org.labkey.api.migration.MigrationTableHandler;
 import org.labkey.api.module.DefaultModule;
 import org.labkey.api.module.ModuleContext;
 import org.labkey.api.view.WebPartFactory;
@@ -27,6 +34,7 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Set;
+import java.util.TreeSet;
 
 public class AuditModule extends DefaultModule
 {
@@ -89,4 +97,57 @@ public Set<String> getProvisionedSchemaNames()
     {
         return Collections.singleton(AuditSchema.SCHEMA_NAME);
     }
+
+    private final Set<String> _registeredMigrationTables = new TreeSet<>(String.CASE_INSENSITIVE_ORDER);
+
+    @Override
+    public void registerMigrationHandlers(@NotNull DatabaseMigrationService service)
+    {
+        service.registerSchemaContributor(AuditSchema.SCHEMA_NAME, schema ->
+            schema.getTableNames().stream()
+                .map(schema::getTable)
+                .filter(table -> table != null && _registeredMigrationTables.add(table.getSelectName()))
+                .forEach(table -> service.registerTableHandler(new MigrationTableHandler()
+                {
+                    @Override
+                    public TableInfo getTableInfo()
+                    {
+                        return table;
+                    }
+
+                    @Override
+                    public ColumnInfo handleColumn(ColumnInfo col)
+                    {
+                        if ("hasdetails".equalsIgnoreCase(col.getName()))
+                            return new HasDetailsCastColumn(col);
+                        return col;
+                    }
+                })));
+    }
+
+    // Some legacy source databases store the DatasetAuditDomain "HasDetails" column as varchar
+    // while the target was provisioned as boolean. CAST to BIT in the source SELECT and report
+    // BOOLEAN as the JdbcType so the migration's INSERT parameter binds cleanly into the
+    // target's boolean column (otherwise the parameter inherits the source column's VARCHAR
+    // type and PG rejects the bound value).
+    private static final class HasDetailsCastColumn extends WrappedColumn
+    {
+        private HasDetailsCastColumn(ColumnInfo col)
+        {
+            super(col, col.getName());
+        }
+
+        @Override
+        @NotNull
+        public JdbcType getJdbcType()
+        {
+            return JdbcType.BOOLEAN;
+        }
+
+        @Override
+        public SQLFragment getValueSql(String tableAlias)
+        {
+            return new SQLFragment("CAST(").append(super.getValueSql(tableAlias)).append(" AS BIT)");
+        }
+    }
 }