1 files changed, 3 insertions, 4 deletions
diff --git a/src/vm.rs b/src/vm.rs
index c7b6c0f..5f7e0e3 100644
--- a/src/vm.rs
+++ b/src/vm.rs
@@ -325,10 +325,9 @@ impl VM {
     }
 
     fn pop_twice(&mut self) -> (Value, Value) {
-        let len = self.stack.len();
-        let res = (self.stack[len-2].clone(), self.stack[len-1].clone());
-        self.stack.truncate(len - 2);
-        res
+        let (a, b) = (self.stack.remove(self.stack.len() - 1),
+                      self.stack.remove(self.stack.len() - 1));
+        (b, a)  // this matches the order they were on the stack
     }
 
     fn _peek_up(&self, amount: usize) -> Option<&Value> {