diff --git a/pkgs/development/beam-modules/elixir-ls/default.nix b/pkgs/development/beam-modules/elixir-ls/default.nix
index acf73d094a2..dd7ea4cacf7 100644
--- a/pkgs/development/beam-modules/elixir-ls/default.nix
+++ b/pkgs/development/beam-modules/elixir-ls/default.nix
@@ -36,7 +36,7 @@ mixRelease  {
   # of the no-deps-check requirement
   buildPhase = ''
     runHook preBuild
-    mix do compile --no-deps-check, elixir-ls.release
+    mix do compile --no-deps-check, elixir_ls.release
     runHook postBuild
   '';