diff --git a/MANIFEST.in b/MANIFEST.in
index 0d9ea856..bb194bb8 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -4,3 +4,4 @@ include ffi/*
 include include/curl/*
 include scripts/build.py
 include Makefile
+include libs.json
diff --git a/libs.json b/libs.json
index 7a2d1090..1b662838 100644
--- a/libs.json
+++ b/libs.json
@@ -10,7 +10,7 @@
     },
     {
         "system": "Windows",
-        "machine": "i686",
+        "machine": "AMD64",
         "pointer_size": 32,
         "libdir": "./lib32",
         "sysname": "win32",