diff --git a/proto/PKGBUILD-split.proto b/proto/PKGBUILD-split.proto
index f341052f..d0978d70 100644
--- a/proto/PKGBUILD-split.proto
+++ b/proto/PKGBUILD-split.proto
@@ -17,6 +17,7 @@ groups=()
 depends=()
 makedepends=()
 checkdepends=()
+optdepends=()
 provides=()
 conflicts=()
 replaces=()