diff --git a/src/libstd/io/process.rs b/src/libstd/io/process.rs
index a4ca77e92fa08..61ebfb06c71fe 100644
--- a/src/libstd/io/process.rs
+++ b/src/libstd/io/process.rs
@@ -1049,10 +1049,10 @@ mod tests {
         for &(ref k, ref v) in r.iter() {
             // don't check android RANDOM variables
             if *k != "RANDOM".to_string() {
-                assert!(output..contains(format!("{}={}",
+                assert!(output.contains(format!("{}={}",
                                                 *k,
                                                 *v).as_slice()) ||
-                        output..contains(format!("{}=\'{}\'",
+                        output.contains(format!("{}=\'{}\'",
                                                 *k,
                                                 *v).as_slice()));
             }