diff --git a/meson.build b/meson.build
index 47336447b..b748cba83 100644
--- a/meson.build
+++ b/meson.build
@@ -179,7 +179,7 @@ taisei_c_args = cc.get_supported_arguments(taisei_c_args)
 
 foreach arglist : [
         taisei_conversion_c_args,
-        ['-msse', '-mfpmath=sse'],
+        ['-msse2', '-mfpmath=sse'],
     ]
     if cc.has_multi_arguments(arglist)
         taisei_c_args += arglist
diff --git a/scripts/pack.py b/scripts/pack.py
index 913e5a665..a7d1d9c04 100755
--- a/scripts/pack.py
+++ b/scripts/pack.py
@@ -104,12 +104,12 @@ def log_file(path, arcname, comp_type=None):
 def pack(args):
     nocompress_file = args.directory / '.nocompress'
 
-    if 1:
+    if sys.maxsize > 2**32:
         comp_type = ZIP_ZSTANDARD
         comp_level = 20
     else:
-        comp_type = ZIP_DEFLATED
-        comp_level = 9
+        comp_type = ZIP_ZSTANDARD
+        comp_level = 19
 
     try:
         nocompress = list(map(re.compile, filter(None, nocompress_file.read_text().strip().split('\n'))))