diff --git a/src/librustdoc/clean/cfg.rs b/src/librustdoc/clean/cfg.rs
index dd58a5b51fc..5177cffe6ba 100644
--- a/src/librustdoc/clean/cfg.rs
+++ b/src/librustdoc/clean/cfg.rs
@@ -517,6 +517,7 @@ fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
                         "aarch64" => "AArch64",
                         "arm" => "ARM",
                         "asmjs" => "JavaScript",
+                        "loongarch64" => "LoongArch LA64",
                         "m68k" => "M68k",
                         "mips" => "MIPS",
                         "mips64" => "MIPS-64",