diff --git a/local/scripts/test-uhci-runtime-qemu.sh b/local/scripts/test-uhci-runtime-qemu.sh
index fecc4ca0ec..1288c881c7 100755
--- a/local/scripts/test-uhci-runtime-qemu.sh
+++ b/local/scripts/test-uhci-runtime-qemu.sh
@@ -16,7 +16,9 @@
 # proof style. Proof markers come straight from
 # local/recipes/drivers/uhcid/source/src/main.rs:
 #   "UHCI USB 1.1 at <pci_path>"                 (main.rs:487 — controller bound)
-#   "uhcid: controller initialized, polling ports" (main.rs:535 — init done)
+#   "uhcid: <name> controller initialized, polling ports" (main.rs:535 — init
+#       done; note ctrl.name is interpolated, e.g. "uhcid: uhci0_uhci controller
+#       initialized, polling ports", so the grep uses a regex, not a literal)
 #   "uhcid: port <n> connect detected"            (main.rs:545 — port event)
 #   "uhcid: port <n> device <vid>:<pid> class <c>" (main.rs:551 — enumerated)
 
@@ -149,9 +151,10 @@ if [[ "$check_mode" -eq 1 ]]; then
     fi
 
     # 2. Frame list allocated and the polling loop started.
-    if ! grep -q "uhcid: controller initialized, polling ports" "$log_file"; then
+    if ! grep -Eq 'uhcid: .* controller initialized, polling ports' "$log_file"; then
         echo "ERROR: uhcid did not finish controller initialization" >&2
-        echo "       Expected: 'uhcid: controller initialized, polling ports'" >&2
+        echo "       Expected: 'uhcid: <name> controller initialized, polling ports'" >&2
+        echo "       (main.rs:535 interpolates ctrl.name, e.g. 'uhcid: uhci0_uhci controller initialized, polling ports')" >&2
         echo "       See $log_file" >&2
         exit 1
     fi