diff --git a/Makefile.in b/Makefile.in
index 865a382795065c45a3c645a499ae4a75168cafff..29d5eb111f93c50911bb88fee89ce4d55ccef660 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -501,6 +501,7 @@ TASK_XFAILS := $(addprefix $(S)src/test/run-pass/, \
                  task-comm-12.rs \
                  task-comm-2.rs \
                  task-comm-9.rs \
+                 task-comm-chan-nil.rs \
                  task-life-0.rs \
                  alt-type-simple.rs \
                  many.rs)
diff --git a/src/Makefile b/src/Makefile
index 48254b028dfd0626c5c3f2242889f1753284b943..229b4e49a4eff66c90573ad8c625a1c68cb0242a 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -434,6 +434,7 @@ TASK_XFAILS := test/run-pass/task-comm-8.rs \
                test/run-pass/task-comm-12.rs \
                test/run-pass/task-comm-2.rs \
                test/run-pass/task-comm-9.rs \
+               test/run-pass/task-comm-chan-nil.rs \
                test/run-pass/task-life-0.rs \
                test/run-pass/alt-type-simple.rs \
                test/run-pass/many.rs
diff --git a/src/test/run-pass/task-comm-chan-nil.rs b/src/test/run-pass/task-comm-chan-nil.rs
new file mode 100644
index 0000000000000000000000000000000000000000..c8f5a90f59ecd51a63e4c068cc7d466639e995ee
--- /dev/null
+++ b/src/test/run-pass/task-comm-chan-nil.rs
@@ -0,0 +1,17 @@
+// -*- rust -*-
+
+// rustboot can't transmit nils across channels because they don't have
+// any size, but rustc currently can because they do have size. Whether
+// or not this is desirable I don't know, but here's a regression test.
+
+impure fn main() {
+  let port[()] po = port();
+  let chan[()] ch = chan(po);
+
+  ch <| ();
+
+  let () n;
+  n <- po;
+
+  check (n == ());
+}