diff --git a/src/constant.rs b/src/constant.rs
index c7d0e32..d0f11b5 100644
--- a/src/constant.rs
+++ b/src/constant.rs
@@ -43,6 +43,8 @@
     use lit::parsing::lit;
     use op::parsing::{binop, unop};
     use ty::parsing::{path, ty};
+    #[cfg(feature = "full")] use expr::parsing::expr;
+    #[cfg(not(feature = "full"))] use synom::IResult;
 
     named!(pub const_expr -> ConstExpr, do_parse!(
         mut e: alt!(
@@ -53,6 +55,8 @@
             expr_path
             |
             expr_paren
+            |
+            expr_other
         ) >>
         many0!(alt!(
             tap!(args: and_call => {
@@ -94,6 +98,14 @@
 
     named!(expr_path -> ConstExpr, map!(path, ConstExpr::Path));
 
+    #[cfg(feature = "full")]
+    named!(expr_other -> ConstExpr, map!(expr, ConstExpr::Other));
+
+    #[cfg(not(feature = "full"))]
+    fn expr_other(_: &str) -> IResult<&str, ConstExpr> {
+        IResult::Error
+    }
+
     named!(and_index -> ConstExpr, delimited!(punct!("["), const_expr, punct!("]")));
 
     named!(expr_paren -> ConstExpr, do_parse!(