diff --git a/fourmolu.yaml b/fourmolu.yaml
index 10e49bd..80e2c88 100644
--- a/fourmolu.yaml
+++ b/fourmolu.yaml
@@ -8,7 +8,7 @@ record-brace-space: true
 newline-between-decls: true
 haddock-style: multi-line
 haddock-style-module: null
-let-style: auto
+let-style: mixed
 in-style: left-align
 single-constraint-parens: always
 single-deriving-parens: always