diff --git a/convention/src/main/kotlin/io/gitlab/jfronny/scripts/codegen/ClassGenerator.kt b/convention/src/main/kotlin/io/gitlab/jfronny/scripts/codegen/ClassGenerator.kt
index 5b2db47..b1095b8 100644
--- a/convention/src/main/kotlin/io/gitlab/jfronny/scripts/codegen/ClassGenerator.kt
+++ b/convention/src/main/kotlin/io/gitlab/jfronny/scripts/codegen/ClassGenerator.kt
@@ -56,7 +56,7 @@ class ClassGenerator(`package`: String, val name: String, val indent: String = "
     fun field(name: String, value: Boolean, modifiers: String = defaultModifiers) = fieldRaw(name, "boolean", value.toString(), modifiers)
     fun field(name: String, value: Short, modifiers: String = defaultModifiers) = fieldRaw(name, "short", value.toString(), modifiers)
     fun field(name: String, value: Int, modifiers: String = defaultModifiers) = fieldRaw(name, "int", value.toString(), modifiers)
-    fun field(name: String, value: Long, modifiers: String = defaultModifiers) = fieldRaw(name, "long", value.toString(), modifiers)
+    fun field(name: String, value: Long, modifiers: String = defaultModifiers) = fieldRaw(name, "long", value.toString() + "L", modifiers)
     fun field(name: String, value: Float, modifiers: String = defaultModifiers) = fieldRaw(name, "float", value.toString() + "f", modifiers)
     fun field(name: String, value: Double, modifiers: String = defaultModifiers) = fieldRaw(name, "double", value.toString(), modifiers)
     fun field(name: String, value: String, modifiers: String = defaultModifiers) = fieldRaw(name, "String", enquote(value), modifiers)