diff --git a/src/distributions/mod.rs b/src/distributions/mod.rs
index c6360c7cab..7f62e9bf0d 100644
--- a/src/distributions/mod.rs
+++ b/src/distributions/mod.rs
@@ -341,7 +341,7 @@ mod tests {
         for _ in 0..100 {
             sum += iter.next().unwrap();
         }
-        assert!(sum > 0.);
+        assert!(0. < sum && sum < 100.);
     }
 
     #[test]