diff --git a/plugin/src/main/kotlin/com/trevjonez/agrp/AgrpTask.kt b/plugin/src/main/kotlin/com/trevjonez/agrp/AgrpTask.kt
index 14dd26c..8c1fe24 100644
--- a/plugin/src/main/kotlin/com/trevjonez/agrp/AgrpTask.kt
+++ b/plugin/src/main/kotlin/com/trevjonez/agrp/AgrpTask.kt
@@ -147,7 +147,7 @@ abstract class AgrpTask : DefaultTask() {
 
   private fun applyModifiers(tagName: String): String {
     var result = tagName
-    configs.forEach { result = it.tagModifier?.transform(result) ?: result }
+    configs.forEach { result = it.tagModifier?.transform(result)?.toString() ?: result }
     return result
   }
 }
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