diff --git a/src/body/body.rs b/src/body/body.rs
index 49c66831..315b8abb 100644
--- a/src/body/body.rs
+++ b/src/body/body.rs
@@ -565,17 +565,17 @@ mod tests {
fn test_size_of() {
// These are mostly to help catch *accidentally* increasing
// the size by too much.
- assert_eq!(
- mem::size_of::