diff --git a/bucket/v2ray.json b/bucket/v2ray.json
index 9050b3f350..cd3c2b8646 100644
--- a/bucket/v2ray.json
+++ b/bucket/v2ray.json
@@ -15,13 +15,16 @@
     },
     "installer": {
         "script": [
+            "#v2ctl.exe cannot recognize signature file when there are spaces in path. This is a workaround to eliminate spaces.",
             "Write-Host 'Verifying V2Ray binary...' -f Yellow",
-            "$sig = \"$dir\\Release\"",
-            "Invoke-WebRequest \"https://github.com/v2fly/v2ray-core/releases/download/v$version/Release\" -OutFile $sig",
-            "if (!(Invoke-Expression \"$dir\\v2ctl.exe verify --sig=$sig $dir\\v2ray.exe\" | Select-String 'OK')) {",
+            "$sig_dir = \"$Env:SystemRoot\\Temp\\v2ray\"",
+            "ensure $sig_dir | Out-Null",
+            "Invoke-WebRequest \"https://github.com/v2fly/v2ray-core/releases/download/v$version/Release\" -OutFile $sig_dir\\Release",
+            "if (!(Invoke-Expression \"&`\"$dir\\v2ctl.exe`\" verify --sig=$sig_dir\\Release `\"$dir\\v2ray.exe`\"\" | Select-String 'OK')) {",
             "    Write-Host 'V2Ray binary is corrupted!' -f Red",
-            "    exit 1",
-            "}"
+            "    break",
+            "}",
+            "Remove-Item $sig_dir -Force -Recurse | Out-Null"
         ]
     },
     "bin": [