diff --git a/manifest.savi b/manifest.savi
index 27438c5..ca0d3a1 100644
--- a/manifest.savi
+++ b/manifest.savi
@@ -10,6 +10,7 @@
     :depends on OSError
 
   :dependency OSError v0
+    :from "github:savi-lang/OSError"
 
 :manifest bin "spec"
   :copies TCP