diff --git a/meson.build b/meson.build
index 80f799686..7ddbcb9ab 100644
--- a/meson.build
+++ b/meson.build
@@ -550,7 +550,7 @@ openssl_options = [
   'cli=disabled',
 ]
 if host_os_family == 'windows' and cc.get_argument_syntax() != 'msvc'
-  openssl_options += '-Dasm=disabled'
+  openssl_options += 'asm=disabled'
 endif
 dependency('openssl',
   required: false,