diff --git a/src/depend/mod.rs b/src/depend/mod.rs
index ffa7836..9a7fb71 100644
--- a/src/depend/mod.rs
+++ b/src/depend/mod.rs
@@ -11,8 +11,8 @@ pub enum Conditional {
 #[derive(Clone, Debug)]
 pub enum Expr {
     Atom(Atom),
-    Conditional(Conditional),
     AllOf(Vec<Expr>),
     AnyOf(Vec<Expr>),
     OneOf(Vec<Expr>),
+    ConditionalGroup(Conditional, Vec<Expr>),
 }
diff --git a/src/depend/parsers.rs b/src/depend/parsers.rs
index 7a69fee..26139ea 100644
--- a/src/depend/parsers.rs
+++ b/src/depend/parsers.rs
@@ -12,29 +12,35 @@ impl<'a> Parseable<'a, &'a str> for Expr {
 
     fn parser() -> Self::Parser {
         |it| {
-            let all_of = Expr::parser()
+            let all_of_group = Expr::parser()
                 .separated_list(whitespace1(), 1..)
                 .delimited_by(tag("(").followed_by(whitespace1()), tag(")"))
                 .map(|exprs| Expr::AllOf(exprs));
 
-            let any_of = Expr::parser()
+            let any_of_group = Expr::parser()
                 .separated_list(whitespace1(), 1..)
                 .delimited_by(tag("(").followed_by(whitespace1()), tag(")"))
                 .preceded_by(tag("||").followed_by(whitespace1()))
                 .map(|exprs| Expr::AnyOf(exprs));
 
-            let one_of = Expr::parser()
+            let one_of_group = Expr::parser()
                 .separated_list(whitespace1(), 1..)
                 .delimited_by(tag("(").followed_by(whitespace1()), tag(")"))
                 .preceded_by(tag("^^").followed_by(whitespace1()))
                 .map(|exprs| Expr::OneOf(exprs));
 
+            let conditional_group = Expr::parser()
+                .separated_list(whitespace1(), 1..)
+                .delimited_by(tag("(").followed_by(whitespace1()), tag(")"))
+                .preceded_by(Conditional::parser().followed_by(whitespace1()))
+                .map(|exprs| Expr::OneOf(exprs));
+
             Atom::parser()
                 .map(|atom| Expr::Atom(atom))
-                .or(Conditional::parser().map(|conditional| Expr::Conditional(conditional)))
-                .or(any_of)
-                .or(all_of)
-                .or(one_of)
+                .or(conditional_group)
+                .or(any_of_group)
+                .or(all_of_group)
+                .or(one_of_group)
                 .parse(it)
         }
     }