diff --git a/examples/gleam/.test.sh b/examples/gleam/.test.sh
index f4c7f2c3e..47c3e43a8 100755
--- a/examples/gleam/.test.sh
+++ b/examples/gleam/.test.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
 
 set -ex
+rm -rf test_proj
 gleam --version
+gleam new test_proj
+cd test_proj
+gleam test
\ No newline at end of file
diff --git a/src/modules/languages/erlang.nix b/src/modules/languages/erlang.nix
index 565855a0a..3112f46f6 100644
--- a/src/modules/languages/erlang.nix
+++ b/src/modules/languages/erlang.nix
@@ -17,9 +17,10 @@ in
 
   config = lib.mkIf cfg.enable
     {
-      packages = with pkgs; [
+      packages = [
         cfg.package
-        erlang-ls
+        pkgs.erlang-ls
+        pkgs.rebar3
       ];
     };
 }
diff --git a/src/modules/languages/gleam.nix b/src/modules/languages/gleam.nix
index ae8f14217..2b2b96652 100644
--- a/src/modules/languages/gleam.nix
+++ b/src/modules/languages/gleam.nix
@@ -16,6 +16,8 @@ in
   };
 
   config = lib.mkIf cfg.enable {
+    languages.erlang.enable = true;
+
     packages = [
       cfg.package
     ];