diff --git a/satrs/src/pool.rs b/satrs/src/pool.rs
index f011d6d..c6f5939 100644
--- a/satrs/src/pool.rs
+++ b/satrs/src/pool.rs
@@ -479,14 +479,14 @@ pub mod heapless_mod {
     ///
     /// let mut mem_pool: StaticHeaplessMemoryPool<2> = StaticHeaplessMemoryPool::new(true);
     /// mem_pool.grow(
-    ///     unsafe { SUBPOOL_SMALL.get_mut() },
-    ///     unsafe { SUBPOOL_SMALL_SIZES.get_mut() },
+    ///     SUBPOOL_SMALL.get_mut().unwrap(),
+    ///     SUBPOOL_SMALL_SIZES.get_mut().unwrap(),
     ///     SUBPOOL_SMALL_NUM_BLOCKS,
     ///     false
     /// ).unwrap();
     /// mem_pool.grow(
-    ///     unsafe { SUBPOOL_LARGE.get_mut() },
-    ///     unsafe { SUBPOOL_LARGE_SIZES.get_mut() },
+    ///     SUBPOOL_LARGE.get_mut().unwrap(),
+    ///     SUBPOOL_LARGE_SIZES.get_mut().unwrap(),
     ///     SUBPOOL_LARGE_NUM_BLOCKS,
     ///     false
     /// ).unwrap();