diff --git a/pkg/inst/worker/worker.R b/pkg/inst/worker/worker.R
index 2a5b756b8b2e3..491c5bd4ede6e 100644
--- a/pkg/inst/worker/worker.R
+++ b/pkg/inst/worker/worker.R
@@ -139,6 +139,8 @@ if (isOutputSerialized) {
 }
 
 close(outputCon)
+close(inputCon)
+unlink(inFileName)
 
 # Restore stdout
 sink()