diff --git a/openssl/src/stack.rs b/openssl/src/stack.rs
index 8359f785..c56c8230 100644
--- a/openssl/src/stack.rs
+++ b/openssl/src/stack.rs
@@ -125,10 +125,7 @@ impl<T: Stackable> IntoIter<T> {
 impl<T: Stackable> Drop for IntoIter<T> {
     fn drop(&mut self) {
         unsafe {
-            for i in self.idx..self.stack_len() {
-                self.get(i);
-            }
-
+            while let Some(_) = self.next() {}
             OPENSSL_sk_free(self.stack as *mut _);
         }
     }