diff --git a/lua/gopher/installer.lua b/lua/gopher/installer.lua
index 66e8bce..d70fea6 100644
--- a/lua/gopher/installer.lua
+++ b/lua/gopher/installer.lua
@@ -11,7 +11,7 @@ local function install(pkg)
       command = "go",
       args = { "install", url },
       on_exit = function(_, ret_val)
-        if ret_val ~= nil then
+        if ret_val ~= 0 then
           print("command exited with code " .. ret_val)
           return
         end