diff --git a/src/chains.rs b/src/chains.rs
index 0181cd3d099..27293175abb 100644
--- a/src/chains.rs
+++ b/src/chains.rs
@@ -169,7 +169,7 @@ pub fn rewrite_chain(expr: &ast::Expr, context: &RewriteContext, shape: Shape) -
     let almost_total = rewrites[..rewrites.len() - 1]
         .iter()
         .fold(0, |a, b| a + first_line_width(b)) + parent_rewrite.len();
-    let one_line_len = rewrites.iter().fold(0, |a, r| a + r.len() + 1) + parent_rewrite.len();
+    let one_line_len = rewrites.iter().fold(0, |a, r| a + r.len()) + parent_rewrite.len();
 
     let veto_single_line = if one_line_len > context.config.chain_one_line_max - 1 &&
                               rewrites.len() > 1 {