diff --git a/vignettes/latent_observed_interaction.Rmd b/vignettes/latent_observed_interaction.Rmd
index e2f0e8c..ccf6737 100644
--- a/vignettes/latent_observed_interaction.Rmd
+++ b/vignettes/latent_observed_interaction.Rmd
@@ -76,7 +76,7 @@ The structural model is simply $\eta = \zeta \sim N(0, \psi)$, where $\psi$ is i
 
 ### Model Without Interaction
 
-It can be instructive to start by considering a model in which we fix $\\lambda_{4} = 0$. This type of model would be estimated with the following code:
+It can be instructive to start by considering a model in which we fix $\lambda_{4} = 0$. This type of model would be estimated with the following code:
 
 
 ``` r