diff --git a/lua/rocks/config/check.lua b/lua/rocks/config/check.lua
index 9faf8fdd..f27bd2c1 100644
--- a/lua/rocks/config/check.lua
+++ b/lua/rocks/config/check.lua
@@ -42,6 +42,9 @@ function check.validate(cfg)
     if not ok then
         return false, err
     end
+    if vim.fn.executable(cfg.luarocks_binary) ~= 1 then
+        return false, ("Cannot execute %s"):format(cfg.luarocks_binary)
+    end
     return true
 end