diff --git a/PgBulk.EFCore/EntityColumnInformation.cs b/PgBulk.EFCore/EntityColumnInformation.cs
index 51bc63f..16369b1 100644
--- a/PgBulk.EFCore/EntityColumnInformation.cs
+++ b/PgBulk.EFCore/EntityColumnInformation.cs
@@ -26,7 +26,8 @@ public EntityColumnInformation(string name, bool primaryKey, bool valueGenerated
         if (Property == null)
             throw new InvalidOperationException("No property is set for this column");
 
-        return Property.PropertyType.IsEnum
+        var truePropertyType = Nullable.GetUnderlyingType(Property.PropertyType) ?? Property.PropertyType;
+        return truePropertyType.IsEnum
             ? Convert.ToInt32(Property.GetValue(entity))
             : Property.GetValue(entity);
     }
diff --git a/PgBulk.EFCore/PgBulk.EFCore.csproj b/PgBulk.EFCore/PgBulk.EFCore.csproj
index 3e772a2..88e46f2 100644
--- a/PgBulk.EFCore/PgBulk.EFCore.csproj
+++ b/PgBulk.EFCore/PgBulk.EFCore.csproj
@@ -6,7 +6,7 @@
         <Nullable>enable</Nullable>
         <LangVersion>10</LangVersion>
         <PackageProjectUrl>https://github.com/redbaty/PgBulk</PackageProjectUrl>
-        <PackageVersion>1.1.13</PackageVersion>
+        <PackageVersion>1.1.14</PackageVersion>
     </PropertyGroup>
 
     <ItemGroup>