diff --git a/src/utils/android/ashmem.cpp b/src/utils/android/ashmem.cpp
index 0e1e81669..461c06239 100644
--- a/src/utils/android/ashmem.cpp
+++ b/src/utils/android/ashmem.cpp
@@ -80,3 +80,8 @@ int ashmem_get_size_region(int fd)
 {
   return ioctl(fd, ASHMEM_GET_SIZE, NULL);
 }
+
+int ashmem_purge_all_caches(int fd)
+{
+  return ioctl(fd, ASHMEM_PURGE_ALL_CACHES, NULL);
+}
diff --git a/src/utils/android/ashmem.h b/src/utils/android/ashmem.h
index 2d6c0b5a4..278192b43 100644
--- a/src/utils/android/ashmem.h
+++ b/src/utils/android/ashmem.h
@@ -19,6 +19,7 @@ int ashmem_set_prot_region(int fd, int prot);
 int ashmem_pin_region(int fd, size_t offset, size_t len);
 int ashmem_unpin_region(int fd, size_t offset, size_t len);
 int ashmem_get_size_region(int fd);
+int ashmem_purge_all_caches(int fd);
 
 #ifdef __cplusplus
 }