diff --git a/spec/bundle/commands/dump_command_spec.rb b/spec/bundle/commands/dump_command_spec.rb
index dca4b5c03..b0adb99c3 100644
--- a/spec/bundle/commands/dump_command_spec.rb
+++ b/spec/bundle/commands/dump_command_spec.rb
@@ -28,6 +28,7 @@
 
   context "when files existed and `--force` is passed" do
     before do
+      ENV["HOMEBREW_BUNDLE_FILE"] = ""
       allow_any_instance_of(Pathname).to receive(:exist?).and_return(true)
       allow(Bundle).to receive(:cask_installed?).and_return(true)
     end
diff --git a/spec/bundle/dumper_spec.rb b/spec/bundle/dumper_spec.rb
index 50515bae4..d7e9e9280 100644
--- a/spec/bundle/dumper_spec.rb
+++ b/spec/bundle/dumper_spec.rb
@@ -7,6 +7,8 @@
   subject(:dumper) { described_class }
 
   before do
+    ENV["HOMEBREW_BUNDLE_FILE"] = ""
+
     allow(Bundle).to receive_messages(cask_installed?: true, mas_installed?: false, whalebrew_installed?: false,
                                       vscode_installed?: false)
     Bundle::BrewDumper.reset!