diff --git a/ui/build/paths/config.go b/ui/build/paths/config.go
index 24169db86f..8b6dd927ea 100644
--- a/ui/build/paths/config.go
+++ b/ui/build/paths/config.go
@@ -121,6 +121,7 @@ var Configuration = map[string]PathConfig{
 	"repo":           Allowed,
 	"rsync":          Allowed,
 	"sh":             Allowed,
+	"size":           Allowed,
 	"stubby":         Allowed,
 	"tar":            Allowed,
 	"tr":             Allowed,