diff --git a/tests/backcompat_test/src/main.rs b/tests/backcompat_test/src/main.rs
index 4113881..bf0afa6 100644
--- a/tests/backcompat_test/src/main.rs
+++ b/tests/backcompat_test/src/main.rs
@@ -152,6 +152,11 @@
         .arg("/chosen/kaslr-seed")
         .arg("--ignore-path-value")
         .arg("/chosen/rng-seed")
+        // TODO: b/391420337 Investigate if bootargs may mutate VM
+        .arg("--ignore-path-value")
+        .arg("/chosen/bootargs")
+        .arg("--ignore-path-value")
+        .arg("/config/kernel-size")
         .arg("--ignore-path-value")
         .arg("/avf/untrusted/instance-id")
         .arg("--ignore-path-value")