diff --git a/pmb/config/__init__.py b/pmb/config/__init__.py
index 4bcf4b37..511d6890 100644
--- a/pmb/config/__init__.py
+++ b/pmb/config/__init__.py
@@ -336,7 +336,6 @@ necessary_kconfig_options_anbox = {
             "SQUASHFS_XZ": True,
             "SQUASHFS_XATTR": True,
             "TMPFS_XATTR": True,
-            "ASHMEM": True,
             "ANDROID_BINDER_IPC": True,
             "ANDROID_BINDERFS": False,
             "ANDROID_BINDER_DEVICES": ["binder", "hwbinder"],
@@ -362,6 +361,11 @@ necessary_kconfig_options_anbox = {
             "PSI": True,  # required by userspace OOM killer in Waydroid
             "PSI_DEFAULT_DISABLED": False,
         }
+    },
+    "<5.18_rc1": {  # option has been dropped
+        "all": {
+            "ASHMEM": True,
+        }
     }
 }