diff --git a/src/contract/tokens.rs b/src/contract/tokens.rs
index af517449..e779147b 100644
--- a/src/contract/tokens.rs
+++ b/src/contract/tokens.rs
@@ -17,6 +17,9 @@ pub trait Detokenize {
 
 impl<T: Tokenizable> Detokenize for T {
     fn from_tokens(mut tokens: Vec<Token>) -> Result<Self, Error> {
+        if tokens.len() == 0 {
+            return Self::from_token(Token::Array(vec![]));
+        }
         if tokens.len() != 1 {
             Err(Error::InvalidOutputType(format!(
                 "Expected single element, got a list: {:?}",