diff --git a/mquickjs_build.c b/mquickjs_build.c
index 6173271..0f19f02 100644
--- a/mquickjs_build.c
+++ b/mquickjs_build.c
@@ -286,7 +286,7 @@ static int atom_cmp(const void *p1, const void *p2)
 
 /* js_atom_table must be properly aligned because the property hash
    table uses the low bits of the atom pointer value */
-#define ATOM_ALIGN 64
+#define ATOM_ALIGN 256
 
 static void dump_atoms(BuildContext *ctx)
 {