diff --git a/docs/Project.toml b/docs/Project.toml
index 18de1ab..80deec7 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -25,3 +25,6 @@ Plots = "1"
 SciMLStructures = "1.1.0"
 StableRNGs = "1"
 SymbolicIndexingInterface = "0.3.15"
+
+[sources]
+ModelingToolkitNeuralNets = { path = ".." }