diff --git a/src/lib.rs b/src/lib.rs
index 79decf0..7adaf04 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -763,6 +763,7 @@ impl Config {
                     "powerpc64-unknown-linux-gnu" => Some("powerpc-linux-gnu"),
                     "powerpc64le-unknown-linux-gnu" => Some("powerpc64le-linux-gnu"),
                     "s390x-unknown-linux-gnu" => Some("s390x-linux-gnu"),
+                    "sparc64-unknown-netbsd" => Some("sparc64--netbsd"),
                     "thumbv6m-none-eabi" => Some("arm-none-eabi"),
                     "thumbv7em-none-eabi" => Some("arm-none-eabi"),
                     "thumbv7em-none-eabihf" => Some("arm-none-eabi"),