diff --git a/lib/uh/wm/env.rb b/lib/uh/wm/env.rb
index 7a42b29..eab4fc3 100644
--- a/lib/uh/wm/env.rb
+++ b/lib/uh/wm/env.rb
@@ -10,7 +10,7 @@ module Uh
       def_delegator :@output, :print
 
       attr_reader   :output
-      attr_accessor :verbose
+      attr_accessor :verbose, :debug
 
       def initialize output
         @output = output
@@ -20,6 +20,10 @@ module Uh
         !!@verbose
       end
 
+      def debug?
+        !!@debug
+      end
+
       def logger
         @logger ||= Logger.new(@output).tap do |o|
           o.level = verbose? ? LOGGER_LEVEL_VERBOSE : LOGGER_LEVEL
diff --git a/spec/uh/wm/env_spec.rb b/spec/uh/wm/env_spec.rb
index f9f1cfb..135f831 100644
--- a/spec/uh/wm/env_spec.rb
+++ b/spec/uh/wm/env_spec.rb
@@ -9,6 +9,10 @@ module Uh
         expect(env).not_to be_verbose
       end
 
+      it 'has debug mode disabled' do
+        expect(env).not_to be_debug
+      end
+
       describe '#verbose?' do
         context 'when verbose mode is disabled' do
           before { env.verbose = false }
@@ -27,6 +31,24 @@ module Uh
         end
       end
 
+      describe '#debug?' do
+        context 'when debug mode is disabled' do
+          before { env.debug = false }
+
+          it 'returns false' do
+            expect(env.debug?).to be false
+          end
+        end
+
+        context 'when debug mode is enabled' do
+          before { env.debug = true }
+
+          it 'returns true' do
+            expect(env.debug?).to be true
+          end
+        end
+      end
+
       describe '#logger' do
         it 'returns a logger' do
           expect(env.logger).to be_a Logger