diff --git a/cc/config/global.go b/cc/config/global.go
index ddb4d85..b19682d 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -380,7 +380,7 @@
 		"-w",
 	}
 
-	CStdVersion               = "gnu23"
+	CStdVersion               = "gnu17"
 	CppStdVersion             = "gnu++20"
 	ExperimentalCStdVersion   = "gnu2x"
 	ExperimentalCppStdVersion = "gnu++2b"