diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c426976e..025a06d3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -80,7 +80,6 @@ jobs:
 
     env:
       BUNDLE_GEMFILE: gemfiles/${{ matrix.rails }}.gemfile
-      RUBYOPT: "--disable-error_highlight"
 
     steps:
       - uses: actions/checkout@v4