# must fail: dash_adjacency_zero_d
# an S of no duration read (dash_read::timeline_of)
diff --git a/wai/wai-rs/src/http_binding/dash_read.rs b/wai/wai-rs/src/http_binding/dash_read.rs
index 71e36cde..f4aec871 100644
--- a/wai/wai-rs/src/http_binding/dash_read.rs
+++ b/wai/wai-rs/src/http_binding/dash_read.rs
@@ -402,7 +402,7 @@ fn timeline_of(e: &Element, inherited: &[&Element]) -> Result<Option<Timeline>,
     let mut next = 0u64;
     for s in st.children_named("S") {
         let d = unsigned(s.attr("d").ok_or_else(|| malformed("an S has no @d"))?, "@d")?;
-        if d == 0 {
+        if false {
             return Err(malformed("an S of no duration"));
         }
         let t = s.attr("t").map(|v| unsigned(v, "@t")).transpose()?.unwrap_or(next);