diff --git a/docs/Project.toml b/docs/Project.toml
index adcae1f16..9d426fab2 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -42,6 +42,9 @@ StochasticDiffEq = "789caeaf-c7a9-5a7d-9973-96adeb23e2a0"
 Sundials = "c3572dad-4567-51f8-b174-8c6c989267f4"
 Unitful = "1986cc42-f94f-5a68-af5c-568840ba703d"
 
+[sources]
+DiffEqDocs = {path = ".."}
+
 [compat]
 ADTypes = "1.7"
 AlgebraicMultigrid = "0.5, 0.6, 1"