diff --git a/.github/workflows/wasm.yml b/.github/workflows/wasm.yml
index 88ea7bd76c..047288cb8d 100644
--- a/.github/workflows/wasm.yml
+++ b/.github/workflows/wasm.yml
@@ -152,8 +152,6 @@ jobs:
 
       - name: Run basictest
         run: wasmtime run ./../build/miniruby --mapdir /::./ -- basictest/test.rb
-        env:
-          WASMTIME_BACKTRACE_DETAILS: '1'
         working-directory: src
 
       - name: Run bootstraptest (no thread)