diff --git a/src/passes/Precompute.cpp b/src/passes/Precompute.cpp
index 295d86b40e2..ba04a68aa26 100644
--- a/src/passes/Precompute.cpp
+++ b/src/passes/Precompute.cpp
@@ -858,7 +858,8 @@ struct Precompute
     }
 
     auto* child = stack[index];
-    for (auto** currChild : ChildIterator(stack[index - 1]).children) {
+    auto childIterator = ChildIterator(stack[index - 1]);
+    for (auto** currChild : childIterator.children) {
       if (*currChild == child) {
         return currChild;
       }