diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index 5427ff8..6d93614 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp
@@ -628,7 +628,7 @@
     return err == NO_ERROR;
 }
 
-uid_t Parcel::readCallingWorkSourceUid()
+uid_t Parcel::readCallingWorkSourceUid() const
 {
     if (!mRequestHeaderPresent) {
         return IPCThreadState::kUnsetWorkSource;