diff --git a/compiler/verification/.z3backend.real.ml.swp b/compiler/verification/.z3backend.real.ml.swp
deleted file mode 100644
index b079121a..00000000
Binary files a/compiler/verification/.z3backend.real.ml.swp and /dev/null differ
diff --git a/compiler/verification/z3backend.real.ml b/compiler/verification/z3backend.real.ml
index 27a512a2..6b414df0 100644
--- a/compiler/verification/z3backend.real.ml
+++ b/compiler/verification/z3backend.real.ml
@@ -742,7 +742,6 @@ and translate_expr (ctx : context) (vc : typed expr) : context * Expr.expr =
   | EArray _ -> failwith "[Z3 encoding] EArray unsupported"
   | ELit l -> ctx, translate_lit ctx l
   | EAbs _ -> failwith "[Z3 encoding] EAbs unsupported"
-  | EApp { f = head; args = [] } -> failwith "[Z3 encoding] let in"
   | EApp { f = head; args } -> (
     match Marked.unmark head with
     | EOp { op; _ } -> translate_op ctx op args