diff --git a/base-hw/run/env b/base-hw/run/env
index fbccb6a3b..cd9d3b942 100644
--- a/base-hw/run/env
+++ b/base-hw/run/env
@@ -207,7 +207,8 @@ proc build_boot_image {binaries} {
 	}
 
 	# retrieve stand-alone core
-	exec mv core/core.standalone bin/core
+	exec cp core/core.standalone bin/core
+	exec rm core/core.standalone
 }