diff --git a/meson.build b/meson.build
index 3ab21c4d..94c5bc9b 100644
--- a/meson.build
+++ b/meson.build
@@ -1,6 +1,6 @@
 project('thorvg',
         'cpp',
-        default_options : ['buildtype=debugoptimized', 'b_sanitize=none', 'werror=false', 'optimization=s', 'cpp_std=c++14', 'strip=true'],
+        default_options : ['buildtype=debugoptimized', 'b_sanitize=none', 'werror=false', 'optimization=3', 'cpp_std=c++14', 'strip=true'],
         version : '0.14.4',
         license : 'MIT')