diff --git a/bucket/iverilog.json b/bucket/iverilog.json
index 512a893d02..a0265f3ace 100644
--- a/bucket/iverilog.json
+++ b/bucket/iverilog.json
@@ -12,6 +12,7 @@
         "bin\\vvp.exe",
         "gtkwave\\bin\\gtkwave.exe"
     ],
+    "env_add_path": "bin",
     "checkver": "iverilog-v([\\d.-]+)-x64_setup.exe",
     "autoupdate": {
         "url": "http://bleyer.org/icarus/iverilog-v$version-x64_setup.exe"