diff --git a/packages/tauri/src-tauri/tauri.conf.json b/packages/tauri/src-tauri/tauri.conf.json
index ca56f41a7..09b1c3114 100644
--- a/packages/tauri/src-tauri/tauri.conf.json
+++ b/packages/tauri/src-tauri/tauri.conf.json
@@ -30,6 +30,11 @@
     "externalBin": ["sidecars/opencode-cli"],
     "macOS": {
       "entitlements": "./entitlements.plist"
+    },
+    "windows": {
+      "nsis": {
+        "installerIcon": "icons/dev/icon.ico"
+      }
     }
   }
 }
diff --git a/packages/tauri/src-tauri/tauri.prod.conf.json b/packages/tauri/src-tauri/tauri.prod.conf.json
index 0a9afbeb8..7894b8ab2 100644
--- a/packages/tauri/src-tauri/tauri.prod.conf.json
+++ b/packages/tauri/src-tauri/tauri.prod.conf.json
@@ -10,7 +10,12 @@
       "icons/prod/128x128@2x.png",
       "icons/prod/icon.icns",
       "icons/prod/icon.ico"
-    ]
+    ],
+    "windows": {
+      "nsis": {
+        "installerIcon": "icons/prod/icon.ico"
+      }
+    }
   },
   "plugins": {
     "updater": {