diff --git a/erlang_ls.config b/erlang_ls.config
index 4422c72a617b..31f041feaf6d 100644
--- a/erlang_ls.config
+++ b/erlang_ls.config
@@ -17,6 +17,7 @@ diagnostics:
 include_dirs:
   - "deps"
   - "deps/*/include"
+  - "extra_deps"
   - "extra_deps/*/include"
 lenses:
   enabled: