diff --git a/gcc/rust/ast/rust-ast-dump.cc b/gcc/rust/ast/rust-ast-dump.cc
index 03a57d416c4333cad06b5990549f3bdda570bccc..477805f19f3367aadeb8d7fbfce04470e90cf398 100644
--- a/gcc/rust/ast/rust-ast-dump.cc
+++ b/gcc/rust/ast/rust-ast-dump.cc
@@ -17,7 +17,6 @@
 // <http://www.gnu.org/licenses/>.
 
 #include "rust-ast-dump.h"
-#include "rust-diagnostics.h"
 
 namespace Rust {
 namespace AST {