diff --git a/include/meson.build b/include/meson.build
index 3030a56ae5..f775c14a16 100644
--- a/include/meson.build
+++ b/include/meson.build
@@ -207,8 +207,9 @@ conf_data.set(
   'BSD44SOCKETS',
   cc.has_member(
      'struct sockaddr_in', 'sin_len',
-     prefix: ['#include <sys/types.h>', '#include <sys/socket.h>',
-              '#include <netinet/in.h>'],
+     prefix: '#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>',
   )  ? '1' : false,
   description: 'Define to 1 if `struct sockaddr_in\' has a `sin_len\' member',
 )
diff --git a/test/pyxtest/meson.build b/test/pyxtest/meson.build
index c74beb8e07..c0f988df76 100644
--- a/test/pyxtest/meson.build
+++ b/test/pyxtest/meson.build
@@ -22,7 +22,7 @@ if pytest.found()
     endif
 
     # Tell the test suite if the server was built with AddressSanitizer
-    if 'address' in get_option('b_sanitize')
+    if get_option('b_sanitize').contains('address')
         pyxtest_env.set('XSERVER_ASAN', '1')
     endif