diff --git a/nx/source/services/fs.c b/nx/source/services/fs.c
index 1eb9495d..206766fc 100644
--- a/nx/source/services/fs.c
+++ b/nx/source/services/fs.c
@@ -193,9 +193,9 @@ Result fsDeleteSaveDataFileSystemBySaveDataSpaceId(FsSaveDataSpaceId saveDataSpa
     struct {
         u64 magic;
         u64 cmd_id;
-        FsSaveDataSpaceId saveDataSpaceId;
+        u8 saveDataSpaceId;
         u64 saveID;
-    } PACKED *raw;
+    } *raw;
 
     raw = serviceIpcPrepareHeader(&g_fsSrv, &c, sizeof(*raw));