diff --git a/src/proposals.jl b/src/proposals.jl
index 93ec151..ee972c5 100644
--- a/src/proposals.jl
+++ b/src/proposals.jl
@@ -13,7 +13,7 @@ abstract type Proposal end
 
 """
 ```
-RandomWalk(; β=0.8, n_parameters)
+RandomWalk(; β=0.8, n_para)
 ```
 
 Gaussian random walk proposal.