diff --git a/bucket/unison.json b/bucket/unison.json
index d02e8edf9f..d24e6cfab8 100644
--- a/bucket/unison.json
+++ b/bucket/unison.json
@@ -7,11 +7,13 @@
     "architecture": {
         "64bit": {
             "url": "https://github.com/bcpierce00/unison/releases/download/v2.53.8/unison-2.53.8-windows-x86_64.zip",
-            "hash": "b54bfe2999d7fc0924f39c13ca5333d8e80a9e6ccf9cac8e92400ca1399ed0e3"
+            "hash": "b54bfe2999d7fc0924f39c13ca5333d8e80a9e6ccf9cac8e92400ca1399ed0e3",
+            "extract_dir": "unison-2.53.8-windows-x86_64"
         },
         "32bit": {
             "url": "https://github.com/bcpierce00/unison/releases/download/v2.53.8/unison-2.53.8-windows-i386.zip",
-            "hash": "bef05a9d9e25b76fd74f0feadd84b1f8fa36694e98a994264c76fecb155ddc2a"
+            "hash": "bef05a9d9e25b76fd74f0feadd84b1f8fa36694e98a994264c76fecb155ddc2a",
+            "extract_dir": "unison-2.53.8-windows-i386"
         }
     },
     "bin": [
@@ -30,10 +32,12 @@
     "autoupdate": {
         "architecture": {
             "64bit": {
-                "url": "https://github.com/bcpierce00/unison/releases/download/v$version/unison-$version-windows-x86_64.zip"
+                "url": "https://github.com/bcpierce00/unison/releases/download/v$version/unison-$version-windows-x86_64.zip",
+                "extract_dir": "unison-$version-windows-x86_64"
             },
             "32bit": {
-                "url": "https://github.com/bcpierce00/unison/releases/download/v$version/unison-$version-windows-i386.zip"
+                "url": "https://github.com/bcpierce00/unison/releases/download/v$version/unison-$version-windows-i386.zip",
+                "extract_dir": "unison-$version-windows-i386"
             }
         }
     }