diff --git a/src/lib.rs b/src/lib.rs
index 60e61e7..d38f315 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -703,6 +703,12 @@ mod tests {
         assert!((z.as_ptr() as usize).abs_diff(x.as_ptr() as usize) >= MIN_DIFF);
     }
 
+    #[test]
+    #[should_panic]
+    fn zero_slab_capacity() {
+        let _ = SlabAllocator::<()>::new(0);
+    }
+
     #[cfg(debug_assertions)]
     #[test]
     #[should_panic]