diff --git a/README.md b/README.md
index 7cd4358..ef8bccf 100644
--- a/README.md
+++ b/README.md
@@ -76,6 +76,7 @@ adapters = {
     transform_spec_path = function(path)
       return path
     end,
+    engine_support = true,
     results_path = function()
       return async.fn.tempname()
     end,
@@ -191,6 +192,18 @@ require("neotest-rspec")({
 })
 ```
 
+### Running engine tests
+
+By default, the adapter will run specs from the directory that contains the `spec/` directory. This means that nested engines' specs will be run in an isolated way from within the engine.
+
+You can opt out of this behaviour and always run specs from the project root:
+
+```lua
+require("neotest-rspec")({
+  engine_support = false
+})
+```
+
 ### Running tests in a Docker container
 
 The following configuration overrides `rspec_cmd` to run a Docker container (using `docker-compose`) and overrides `transform_spec_path` to pass the spec file as a relative path instead of an absolute path to RSpec. The `results_path` needs to be set to a location which is available to both the container and the host. Additionally, to avoid using a custom formatter, you need to specify `formatter = "json"`.
diff --git a/engine/spec/engine_spec.rb b/engine/spec/engine_spec.rb
new file mode 100644
index 0000000..3b571ee
--- /dev/null
+++ b/engine/spec/engine_spec.rb
@@ -0,0 +1,5 @@
+RSpec.describe 'Engine support' do
+  it 'runs specs from the engine root' do
+    expect(Dir.pwd).to end_with('/engine')
+  end
+end
diff --git a/engine/spec/engine_spec_01.commands b/engine/spec/engine_spec_01.commands
new file mode 100644
index 0000000..4d9cafd
--- /dev/null
+++ b/engine/spec/engine_spec_01.commands
@@ -0,0 +1,2 @@
+:1
+:lua require("neotest").run.run()
diff --git a/engine/spec/engine_spec_01.expected b/engine/spec/engine_spec_01.expected
new file mode 100644
index 0000000..9d47fb0
--- /dev/null
+++ b/engine/spec/engine_spec_01.expected
@@ -0,0 +1 @@
+./SPEC/ENGINE_SPEC.RB@@PASSED@@runs specs from the engine root
diff --git a/engine/spec/engine_spec_02.commands b/engine/spec/engine_spec_02.commands
new file mode 100644
index 0000000..b039081
--- /dev/null
+++ b/engine/spec/engine_spec_02.commands
@@ -0,0 +1,3 @@
+:lua require("neotest-rspec")({engine_support=false})
+:1
+:lua require("neotest").run.run()
diff --git a/engine/spec/engine_spec_02.expected b/engine/spec/engine_spec_02.expected
new file mode 100644
index 0000000..49a9435
--- /dev/null
+++ b/engine/spec/engine_spec_02.expected
@@ -0,0 +1 @@
+./ENGINE/SPEC/ENGINE_SPEC.RB@@FAILED@@runs specs from the engine root
diff --git a/lua/neotest-rspec/config.lua b/lua/neotest-rspec/config.lua
index e2cc4d1..69e55b3 100644
--- a/lua/neotest-rspec/config.lua
+++ b/lua/neotest-rspec/config.lua
@@ -20,6 +20,8 @@ M.transform_spec_path = function(path)
   return path
 end
 
+M.engine_support = true
+
 M.results_path = function()
   return require("neotest.async").fn.tempname()
 end
diff --git a/lua/neotest-rspec/init.lua b/lua/neotest-rspec/init.lua
index f42187e..2cef4e8 100644
--- a/lua/neotest-rspec/init.lua
+++ b/lua/neotest-rspec/init.lua
@@ -93,7 +93,7 @@ local function get_formatter_path()
   local formatter_path = plugin_root .. "/neotest_formatter.rb"
 
   -- Return the absolute path
-  return vim.fn.resolve(formatter_path)
+  return vim.fn.fnamemodify(formatter_path, ":p")
 end
 
 ---@param args neotest.RunArgs
@@ -103,11 +103,14 @@ function NeotestAdapter.build_spec(args)
   local engine_name = nil
 
   local spec_path = config.transform_spec_path(position.path)
-  local path = async.fn.expand("%")
+  local path = vim.fn.fnamemodify(async.fn.expand("%"), ":.")
+
+  if config.engine_support then
+    -- if the path starts with spec, it's a normal test. Otherwise, it's an engine test
+    local match = vim.regex("spec/"):match_str(path)
+    if match and match ~= 0 then engine_name = string.sub(path, 0, match - 1) end
+  end
 
-  -- if the path starts with spec, it's a normal test. Otherwise, it's an engine test
-  local match = vim.regex("^spec/"):match_str(path)
-  if match and match ~= 0 then engine_name = string.sub(path, 0, match - 1) end
   local results_path = config.results_path()
 
   local formatter_path = get_formatter_path()
@@ -257,6 +260,9 @@ setmetatable(NeotestAdapter, {
         return opts.results_path
       end
     end
+    if opts.engine_support ~= nil then
+      config.engine_support = opts.engine_support
+    end
     if is_callable(opts.formatter) then
       config.formatter = opts.formatter
     elseif opts.formatter then
diff --git a/tests/template.lua b/tests/template.lua
index 8ce671b..c13763f 100644
--- a/tests/template.lua
+++ b/tests/template.lua
@@ -9,6 +9,12 @@ local function assert_skipped(reason)
 end
 
 local function for_each_test_file(test, callback)
+  -- If given a full relative path, use it directly
+  local test_path = Path:new(cwd, test):absolute()
+  if vim.loop.fs_stat(test_path) then
+    callback(test_path)
+    return
+  end
   local files = scandir.scan_dir(Path:new(cwd, "spec"):absolute())
   for _, file in pairs(files) do
     if string.match(file, test) then
diff --git a/tests/unit/rspec/engine_spec.lua b/tests/unit/rspec/engine_spec.lua
new file mode 100644
index 0000000..1ca7776
--- /dev/null
+++ b/tests/unit/rspec/engine_spec.lua
@@ -0,0 +1,3 @@
+local test = require("tests.template")
+
+test.describe("Testing engine specs", "engine/spec/engine_spec.rb")