diff --git a/node/src/main/kotlin/net/corda/node/services/persistence/NodeAttachmentService.kt b/node/src/main/kotlin/net/corda/node/services/persistence/NodeAttachmentService.kt
index 0bdd5a3254..2b479de736 100644
--- a/node/src/main/kotlin/net/corda/node/services/persistence/NodeAttachmentService.kt
+++ b/node/src/main/kotlin/net/corda/node/services/persistence/NodeAttachmentService.kt
@@ -172,5 +172,5 @@ class NodeAttachmentService(override var storePath: Path, dataSourceProperties:
     // Implementations for AcceptsFileUpload
     override val dataTypePrefix = "attachment"
     override val acceptableFileExtensions = listOf(".jar", ".zip")
-    override fun upload(data: InputStream) = importAttachment(data).toString()
+    override fun upload(file: InputStream) = importAttachment(file).toString()
 }