diff --git a/setup.py b/setup.py
index b8ca9cf..cb1084d 100644
--- a/setup.py
+++ b/setup.py
@@ -371,7 +371,7 @@ def build_extensions(self):
         else:
             openmpflag = "-fopenmp"
             archi = platform.machine()
-            if archi in ("i386", "x86_64"):
+            if archi in ("i386", "x86_64", "loongarch64"):
                 compileflags = COMPILE_FLAGS + ["-march=%s" % self.march]
             else:
                 compileflags = COMPILE_FLAGS + ["-mcpu=%s" % self.march]