diff --git a/libweston/backend-rdp/rdp.h b/libweston/backend-rdp/rdp.h
index 5243cfdec..c5f515097 100644
--- a/libweston/backend-rdp/rdp.h
+++ b/libweston/backend-rdp/rdp.h
@@ -27,14 +27,6 @@
 #ifndef RDP_H
 #define RDP_H
 
-/* Workaround an issue with clang and freerdp 3 headers. Another
- * option would be to build with --std=c11 but weston itself isn't
- * quite ready for that
- */
-#if USE_FREERDP_VERSION >= 3 && defined(__clang__)
-#pragma clang diagnostic ignored "-Wtypedef-redefinition"
-#endif
-
 #include <freerdp/version.h>
 
 #include <freerdp/freerdp.h>
diff --git a/meson.build b/meson.build
index 9ae739b86..779f25265 100644
--- a/meson.build
+++ b/meson.build
@@ -3,7 +3,7 @@ project('weston',
 	version: '14.0.90',
 	default_options: [
 		'warning_level=3',
-		'c_std=gnu99',
+		'c_std=gnu11',
 		'b_lundef=true',
 	],
 	meson_version: '>= 0.63.0',