diff --git a/spec/global_env_def.tl b/spec/global_env_def.tl
new file mode 100644
index 0000000..638a7c9
--- /dev/null
+++ b/spec/global_env_def.tl
@@ -0,0 +1,6 @@
+require("busted")
+
+-- We still can't do that with teal 0.15.2+dev.
+-- The fix for now is to redeclare assert in every test file,
+-- tl throws a warning but it's non-blocking, so it'll do for now.
+-- global assert = require("luassert")
diff --git a/spec/printer/teal_type_definition_spec.tl b/spec/printer/teal_type_definition_spec.tl
index f6367ac..56d7c2c 100644
--- a/spec/printer/teal_type_definition_spec.tl
+++ b/spec/printer/teal_type_definition_spec.tl
@@ -1,7 +1,7 @@
-local assert = require("luassert")
-local type Node = require("types.Node")
-local stringx = require("pl.stringx")
-local teal_type_definition_printer = require("printer.teal_type_definition")
+local assert <const> = require("luassert")
+local type Node = require("awesomewm-d-tl.types.Node")
+local stringx <const> = require("pl.stringx")
+local teal_type_definition_printer <const> = require("awesomewm-d-tl.printer.teal_type_definition")
 
 local printer = teal_type_definition_printer.printer
 
diff --git a/spec/scraper/module_doc_spec.tl b/spec/scraper/module_doc_spec.tl
index d563fd4..97e5920 100644
--- a/spec/scraper/module_doc_spec.tl
+++ b/spec/scraper/module_doc_spec.tl
@@ -1,6 +1,6 @@
-local assert = require("luassert")
-local type Node = require("types.Node")
-local scraper = require("scraper.module_doc")
+local assert <const> = require("luassert")
+local type Node = require("awesomewm-d-tl.types.Node")
+local scraper <const> = require("awesomewm-d-tl.scraper.module_doc")
 
 local get_doc_from_page = scraper.get_doc_from_page
 
diff --git a/spec/tlconfig.lua b/spec/tlconfig.lua
index 33aee75..8adbe5c 100644
--- a/spec/tlconfig.lua
+++ b/spec/tlconfig.lua
@@ -1,7 +1,7 @@
 return {
    include_dir = {
-      "../src/awesomewm.d.tl",
+      "../src",
       "../types",
    },
-   global_env_def = "busted",
+   global_env_def = "global_env_def",
 }