diff --git a/README.md b/README.md
index 64797d6..9054b55 100644
--- a/README.md
+++ b/README.md
@@ -52,7 +52,7 @@ outer_kernel = MultiHMCGibbs(
     [['y'], ['x']]
 )
 mcmc = MCMC(
-    kernel,
+    outer_kernel,
     num_warmup=100,
     num_samples=100,
     progress_bar=False