diff --git a/src/format.rs b/src/format.rs
index 925f976..21a0533 100644
--- a/src/format.rs
+++ b/src/format.rs
@@ -4,12 +4,6 @@ struct TermDisplay<'term>
 	term: &'term crate::Term,
 }
 
-struct FormulaDisplay<'formula>
-{
-	parent_precedence: i32,
-	formula: &'formula crate::Formula,
-}
-
 fn display_term<'term>(term: &'term crate::Term, parent_precedence: i32) -> TermDisplay<'term>
 {
 	TermDisplay
@@ -19,6 +13,12 @@ fn display_term<'term>(term: &'term crate::Term, parent_precedence: i32) -> Term
 	}
 }
 
+struct FormulaDisplay<'formula>
+{
+	parent_precedence: i32,
+	formula: &'formula crate::Formula,
+}
+
 fn display_formula<'formula>(formula: &'formula crate::Formula, parent_precedence: i32)
 	-> FormulaDisplay<'formula>
 {