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-rw-r--r--tvix/eval/src/vm.rs5
1 files changed, 3 insertions, 2 deletions
diff --git a/tvix/eval/src/vm.rs b/tvix/eval/src/vm.rs
index c55bc81777f1..d85f31a3cb02 100644
--- a/tvix/eval/src/vm.rs
+++ b/tvix/eval/src/vm.rs
@@ -444,8 +444,9 @@ impl VM {
                 OpCode::OpForce => {
                     let mut value = self.pop();
 
-                    while let Value::Thunk(thunk) = value {
-                        value = thunk.force(self)?.clone();
+                    if let Value::Thunk(thunk) = value {
+                        thunk.force(self)?;
+                        value = thunk.value().clone();
                     }
 
                     self.push(value);