diff --git a/spec/docker_commander_spec.rb b/spec/docker_commander_spec.rb
index d88992d..01d14c3 100644
--- a/spec/docker_commander_spec.rb
+++ b/spec/docker_commander_spec.rb
@@ -98,7 +98,7 @@
       let(:container_name) { 'abcdef123' }
 
       it 'executes commands inside docker if container name is specified' do
-        expect(Fastlane::Actions).to receive(:sh).with('docker exec -i abcdef123 bash -l -c "do stuff"')
+        expect(Fastlane::Actions).to receive(:sh).with('docker exec abcdef123 bash -l -c "do stuff"')
         docker_commander.exec(command: 'do stuff')
       end
     end
diff --git a/spec/emulator_commander_spec.rb b/spec/emulator_commander_spec.rb
index 6e0f0fb..707f071 100644
--- a/spec/emulator_commander_spec.rb
+++ b/spec/emulator_commander_spec.rb
@@ -5,9 +5,9 @@
 
   describe '#disable_animations' do
     it 'disables emulator animation' do
-      expect(Fastlane::Actions).to receive(:sh).with('docker exec -i a_name bash -l -c "adb shell settings put global window_animation_scale 0.0"')
-      expect(Fastlane::Actions).to receive(:sh).with('docker exec -i a_name bash -l -c "adb shell settings put global transition_animation_scale 0.0"')
-      expect(Fastlane::Actions).to receive(:sh).with('docker exec -i a_name bash -l -c "adb shell settings put global animator_duration_scale 0.0"')
+      expect(Fastlane::Actions).to receive(:sh).with('docker exec a_name bash -l -c "adb shell settings put global window_animation_scale 0.0"')
+      expect(Fastlane::Actions).to receive(:sh).with('docker exec a_name bash -l -c "adb shell settings put global transition_animation_scale 0.0"')
+      expect(Fastlane::Actions).to receive(:sh).with('docker exec a_name bash -l -c "adb shell settings put global animator_duration_scale 0.0"')
 
       emulator_commander.disable_animations
     end
@@ -15,36 +15,36 @@
 
   describe '#increase_logcat_storage' do
     it 'increases_logcat_storage' do
-      expect(Fastlane::Actions).to receive(:sh).with('docker exec -i a_name bash -l -c "adb logcat -G 16m"')
+      expect(Fastlane::Actions).to receive(:sh).with('docker exec a_name bash -l -c "adb logcat -G 16m"')
       emulator_commander.increase_logcat_storage
     end
   end
 
   describe '#emulator_is_healthy?' do
     it 'returns true if emulator is healthy' do
-      expect(Fastlane::Actions).to receive(:sh).with('docker exec -i a_name bash -l -c "adb devices"').and_return("emulator_5554 \tdevice")
+      expect(Fastlane::Actions).to receive(:sh).with('docker exec a_name bash -l -c "adb devices"').and_return("emulator_5554 \tdevice")
       expect(emulator_commander.emulator_is_healthy?).to be true
     end
 
     it 'returns false if emulator is unhealthy' do
-      expect(Fastlane::Actions).to receive(:sh).with('docker exec -i a_name bash -l -c "adb devices"').and_return("emulator_5554 \tunauthorized")
+      expect(Fastlane::Actions).to receive(:sh).with('docker exec a_name bash -l -c "adb devices"').and_return("emulator_5554 \tunauthorized")
       expect(emulator_commander.emulator_is_healthy?).to be false
     end
   end
 
   describe '#check_connection' do
     it 'returns false if simulator is unhealthy' do
-      expect(Fastlane::Actions).to receive(:sh).with('docker exec -i a_name bash -l -c "adb devices"').and_return("emulator_5554 \tunauthorized")
+      expect(Fastlane::Actions).to receive(:sh).with('docker exec a_name bash -l -c "adb devices"').and_return("emulator_5554 \tunauthorized")
       expect(emulator_commander.check_connection).to be false
     end
 
     it 'returns true if simulator is healthy' do
-      expect(Fastlane::Actions).to receive(:sh).with('docker exec -i a_name bash -l -c "adb devices"').and_return("emulator_5554 \tdevice")
+      expect(Fastlane::Actions).to receive(:sh).with('docker exec a_name bash -l -c "adb devices"').and_return("emulator_5554 \tdevice")
       expect(emulator_commander.check_connection).to be true
     end
 
     it 'prints a success message if simulator is healthy' do
-      expect(Fastlane::Actions).to receive(:sh).with('docker exec -i a_name bash -l -c "adb devices"').and_return("emulator_5554 \tdevice")
+      expect(Fastlane::Actions).to receive(:sh).with('docker exec a_name bash -l -c "adb devices"').and_return("emulator_5554 \tdevice")
       expect(Fastlane::UI).to receive(:success).with('Checking if emulator is connected to ADB.')
       expect(Fastlane::UI).to receive(:success).with('Emulator connected successfully')
       emulator_commander.check_connection