diff --git a/src/libcore/repr.rs b/src/libcore/repr.rs
index 03e44e00d88..29b8400706c 100644
--- a/src/libcore/repr.rs
+++ b/src/libcore/repr.rs
@@ -673,7 +673,7 @@ pub fn write_repr<T>(writer: @Writer, object: &T) {
     }
 }
 
-#[test]
+#[cfg(test)]
 struct P {a: int, b: float}
 
 #[test]
diff --git a/src/libstd/deque.rs b/src/libstd/deque.rs
index 5d52bb7c081..8a310a9f52b 100644
--- a/src/libstd/deque.rs
+++ b/src/libstd/deque.rs
@@ -353,7 +353,7 @@ mod tests {
         assert!(*deq.get(3) == d);
     }
 
-    #[test]
+    #[cfg(test)]
     fn test_parameterized<T:Copy + Eq + Durable>(a: T, b: T, c: T, d: T) {
         let mut deq = Deque::new();
         assert!(deq.len() == 0);