diff --git a/docs/src/index.md b/docs/src/index.md
index 20f1b3b53d..08960823e8 100644
--- a/docs/src/index.md
+++ b/docs/src/index.md
@@ -3,7 +3,7 @@
 [NeuralPDE.jl](https://github.com/SciML/NeuralPDE.jl) is a solver package which 
 consists of neural network solvers for partial differential equations using 
 physics-informed neural networks (PINNs) and the ability to generate neural
-networks which both approximate physical laws and real data simultaniously.
+networks which both approximate physical laws and real data simultaneously.
 
 ## Features