diff --git a/src/test/pretty/where-clauses.rs b/src/test/pretty/where-clauses.rs
index 5614a81b0eb..4183799457b 100644
--- a/src/test/pretty/where-clauses.rs
+++ b/src/test/pretty/where-clauses.rs
@@ -2,4 +2,7 @@
 
 fn f<'a, 'b, T>(t: T) -> isize where T: 'a, 'a: 'b, T: Eq { 0 }
 
+// This is legal syntax, sometimes generated by macros. `where T: $($bound+)*`
+fn zero_bounds<'a, T>() where 'a:, T: {}
+
 fn main() {}