diff --git a/lua/rocks/adapter.lua b/lua/rocks/adapter.lua
index e74ffa9..c1c8a2a 100644
--- a/lua/rocks/adapter.lua
+++ b/lua/rocks/adapter.lua
@@ -138,6 +138,10 @@ end
 ---@param rock RockSpec | Rock
 ---@return boolean created
 function adapter.init_site_symlink_sync(rock)
+    if not rock.version then
+        log.info("Cannot init site symlink without rock version")
+        return false
+    end
     local rock_dir = get_rock_dir(rock)
     local handle = vim.uv.fs_scandir(rock_dir)
     while handle do
diff --git a/lua/rocks/operations/helpers/init.lua b/lua/rocks/operations/helpers/init.lua
index e21f80e..20bb99f 100644
--- a/lua/rocks/operations/helpers/init.lua
+++ b/lua/rocks/operations/helpers/init.lua
@@ -154,14 +154,16 @@ function helpers.dynamic_load(rock_spec)
     end
     nio.run(function()
         vim.schedule(function()
-            if rock_spec.opt then
-                -- Add rock to the rtp, but don't source any scripts
-                log.trace(("Adding %s to the runtimepath"):format(rock_spec.name))
-                runtime.packadd(rock_spec, { bang = true })
-            else
-                log.trace(("Sourcing %s"):format(rock_spec.name))
-                runtime.packadd(rock_spec)
-            end
+            pcall(function()
+                if rock_spec.opt then
+                    -- Add rock to the rtp, but don't source any scripts
+                    log.trace(("Adding %s to the runtimepath"):format(rock_spec.name))
+                    runtime.packadd(rock_spec, { bang = true })
+                else
+                    log.trace(("Sourcing %s"):format(rock_spec.name))
+                    runtime.packadd(rock_spec)
+                end
+            end)
             future.set(true)
         end)
     end)
diff --git a/lua/rocks/runtime.lua b/lua/rocks/runtime.lua
index 70d0066..bd5e8d6 100644
--- a/lua/rocks/runtime.lua
+++ b/lua/rocks/runtime.lua
@@ -38,7 +38,11 @@ function runtime.packadd(rock_spec, opts)
     opts = vim.tbl_deep_extend("force", {
         bang = false,
     }, opts or {})
-    if not adapter.has_site_symlink(rock_spec) and not adapter.init_site_symlink_sync(rock_spec) then
+    if
+        rock_spec.version
+        and not adapter.has_site_symlink(rock_spec)
+        and not adapter.init_site_symlink_sync(rock_spec)
+    then
         log.warn(("Rock %s does not appear to be installed."):format(rock_spec.name))
         return false
     end