diff --git a/cmds/installd/otapreopt.cpp b/cmds/installd/otapreopt.cpp
index 68cb0d7..99ff20d 100644
--- a/cmds/installd/otapreopt.cpp
+++ b/cmds/installd/otapreopt.cpp
@@ -753,10 +753,6 @@
     }
 
     static const char* ParseNull(const char* arg) {
-        // b/38186355. Revert soon.
-        if (strcmp(arg, "!null") == 0) {
-            return nullptr;
-        }
         return (strcmp(arg, "!") == 0) ? nullptr : arg;
     }