diff --git a/ablescript/src/interpret.rs b/ablescript/src/interpret.rs
index 7d314be..986c46a 100644
--- a/ablescript/src/interpret.rs
+++ b/ablescript/src/interpret.rs
@@ -129,10 +129,12 @@ impl<H: HostInterface> ExecEnv<H> {
             }),
         }?;
 
-        for block in std::mem::take(&mut self.finalisers) {
-            self.eval_stmts_hs(&block, true)?;
+        while self.finalisers.len() != 0 {
+            for block in std::mem::take(&mut self.finalisers) {
+                self.eval_stmts_hs(&block, true)?;
+            }
         }
-
+        
         Ok(())
     }