diff --git a/fs_mgr/fs_mgr_verity.cpp b/fs_mgr/fs_mgr_verity.cpp
index e368a82..f6a14da 100644
--- a/fs_mgr/fs_mgr_verity.cpp
+++ b/fs_mgr/fs_mgr_verity.cpp
@@ -285,7 +285,7 @@
 
     // set next target boundary
     verity_params += strlen(verity_params) + 1;
-    verity_params = (char*)(((unsigned long)verity_params + 7) & ~8);
+    verity_params = (char*)(((uintptr_t)verity_params + 7) & ~7);
     tgt->next = verity_params - buffer;
 
     // send the ioctl to load the verity table