diff --git a/src/dune_rules/package.ml b/src/dune_rules/package.ml
index ed2a772bdd16..debb3a96bbf6 100644
--- a/src/dune_rules/package.ml
+++ b/src/dune_rules/package.ml
@@ -281,8 +281,8 @@ module Dependency = struct
       | _ -> assert false
     in
     if decide context.pelem p v.pelem
-      then nopos (Group (nopos [v]))
-      else v
+    then nopos (Group (nopos [v]))
+    else v
 
   let opam_constraint t : OpamParserTypes.FullPos.value =
     let open OpamParserTypes.FullPos in