diff --git a/riot-headers.h b/riot-headers.h
index c4ff4d7..166bcdc 100644
--- a/riot-headers.h
+++ b/riot-headers.h
@@ -171,8 +171,11 @@
 #include "uuid.h"
 #endif
 #ifdef MODULE_XTIMER
+// Uses C11 generics since https://github.com/RIOT-OS/RIOT/pull/20494
+#ifndef IS_C2RUST
 #include <xtimer.h>
 #endif
+#endif
 #ifdef MODULE_ZTIMER
 #include <ztimer.h>
 #endif