diff --git a/meilidb-core/src/lib.rs b/meilidb-core/src/lib.rs
index 8b8606ddf..11c734e37 100644
--- a/meilidb-core/src/lib.rs
+++ b/meilidb-core/src/lib.rs
@@ -292,6 +292,6 @@ mod tests {
 
     #[test]
     fn docindex_mem_size() {
-        assert_eq!(mem::size_of::<DocIndex>(), 24);
+        assert_eq!(mem::size_of::<DocIndex>(), 16);
     }
 }