diff --git a/changelog.d/8658-restore-lost-unary-pos-assertions.md b/changelog.d/8658-restore-lost-unary-pos-assertions.md
new file mode 100644
index 0000000000..d6a7e55489
--- /dev/null
+++ b/changelog.d/8658-restore-lost-unary-pos-assertions.md
@@ -0,0 +1,11 @@
+Restored three `computed_store_rooting_tests` assertions that were lost when
+#8650 was squash-merged as part of #8657.
+
+#8650 changed unary `+` on a non-numeric operand to emit `js_dynamic_pos`
+instead of `js_number_coerce` (`expr/unary.rs`, `UnaryOp::Pos`) and updated the
+three tests that assert on that helper. The squash kept the emission change and
+dropped the test edit, so the assertions kept naming the old helper and failed
+deterministically.
+
+No product behaviour changes: the tests now name the helper the compiler
+actually emits, which is what #8650 intended.
diff --git a/crates/perry-codegen/src/expr/computed_store_rooting_tests.rs b/crates/perry-codegen/src/expr/computed_store_rooting_tests.rs
index 9aeadbeb13..97e220aeaf 100644
--- a/crates/perry-codegen/src/expr/computed_store_rooting_tests.rs
+++ b/crates/perry-codegen/src/expr/computed_store_rooting_tests.rs
@@ -796,7 +796,7 @@ fn collecting_masked_window_index_declines_the_hoisted_pointer_tier() {
 
     let collecting = masked_window_index_coercion_loop(Type::Any);
     assert!(
-        calls(&collecting, "js_number_coerce"),
+        calls(&collecting, "js_dynamic_pos"),
         "unary + over an any key must exercise the collecting coercion witness:\n{collecting}"
     );
     assert!(
@@ -819,7 +819,7 @@ fn collecting_rhs_between_masked_reads_declines_the_hoisted_pointer_tier() {
 
     let collecting = masked_window_rhs_coercion_loop(Type::Any);
     assert!(
-        calls(&collecting, "js_number_coerce"),
+        calls(&collecting, "js_dynamic_pos"),
         "the any-typed RHS must exercise the user-coercion witness:\n{collecting}"
     );
     assert!(
@@ -842,7 +842,7 @@ fn collecting_rhs_declines_the_straight_line_masked_region() {
 
     let collecting = masked_window_rhs_coercion_region(Type::Any);
     assert!(
-        calls(&collecting, "js_number_coerce"),
+        calls(&collecting, "js_dynamic_pos"),
         "the any-typed region RHS must exercise the user-coercion witness:\n{collecting}"
     );
     assert!(