diff --git a/targets/x86_64-unknown-none.json b/targets/x86_64-unknown-none.json
index 12f5d72..9cabf99 100644
--- a/targets/x86_64-unknown-none.json
+++ b/targets/x86_64-unknown-none.json
@@ -2,6 +2,7 @@
     "llvm-target": "x86_64-unknown-none",
     "target-endian": "little",
     "target-pointer-width": "64",
+    "target-c-int-width": "32",
     "data-layout": "e-m:e-i64:64-f80:128-n8:16:32:64-S128",
     "arch": "x86_64",
     "os": "none",