diff --git a/setup.py b/setup.py
index 881cbbd..94d5b6c 100644
--- a/setup.py
+++ b/setup.py
@@ -41,6 +41,7 @@
     # upstream silences; in particular distros like Nix/Debian/Fedora inject
     # -Werror=format-security, which would otherwise fail the build.
     extra_compile_args=[
+        "-std=c11",
         "-Wno-format",
         "-Wno-format-security",
         "-Wno-unused-but-set-variable",