diff --git a/plugins/dap/dapHelpers.nix b/plugins/dap/dapHelpers.nix
index e6671254..9112aebb 100644
--- a/plugins/dap/dapHelpers.nix
+++ b/plugins/dap/dapHelpers.nix
@@ -122,7 +122,7 @@ in rec {
   processAdapters = type: adapters:
     with builtins;
       mapAttrs (_: adapter:
-        if typeOf adapter == "string"
+        if isString adapter
         then helpers.mkRaw adapter
         else
           filterAttrs (n: _: n != "enrichConfig") (
diff --git a/tests/test-sources/plugins/dap/nvim-dap.nix b/tests/test-sources/plugins/dap/_dap.nix
similarity index 100%
rename from tests/test-sources/plugins/dap/nvim-dap.nix
rename to tests/test-sources/plugins/dap/_dap.nix