diff --git a/services/core/jni/com_android_server_am_CachedAppOptimizer.cpp b/services/core/jni/com_android_server_am_CachedAppOptimizer.cpp
index af5718f076d60..9f1113cd4c697 100644
--- a/services/core/jni/com_android_server_am_CachedAppOptimizer.cpp
+++ b/services/core/jni/com_android_server_am_CachedAppOptimizer.cpp
@@ -224,6 +224,7 @@ public:
 // process_madvise on failure
 int madviseVmasFromBatch(unique_fd& pidfd, VmaBatch& batch, int madviseType,
                          uint64_t* outBytesProcessed) {
+    static const size_t kPageSize = getpagesize();
     if (batch.totalVmas == 0 || batch.totalBytes == 0) {
         // No VMAs in Batch, skip.
         *outBytesProcessed = 0;
@@ -249,7 +250,7 @@ int madviseVmasFromBatch(unique_fd& pidfd, VmaBatch& batch, int madviseType,
     } else if (bytesProcessedInSend < batch.totalBytes) {
         // Partially processed the bytes requested
         // skip last page which is where it failed.
-        bytesProcessedInSend += PAGE_SIZE;
+        bytesProcessedInSend += kPageSize;
     }
     bytesProcessedInSend = consumeBytes(batch, bytesProcessedInSend);