diff --git a/apps/apps_container.cpp b/apps/apps_container.cpp
index 4a9afed0b..c352f44c4 100644
--- a/apps/apps_container.cpp
+++ b/apps/apps_container.cpp
@@ -4,6 +4,7 @@
 #include <ion.h>
 #include <poincare/init.h>
 #include <poincare/exception_checkpoint.h>
+#include <ion/backlight.h>
 
 extern "C" {
 #include <assert.h>
@@ -220,7 +221,7 @@ bool AppsContainer::processEvent(Ion::Events::Event event) {
   }
   if (event == Ion::Events::BrightnessPlus || event == Ion::Events::BrightnessMinus) {
       int delta = Ion::Backlight::MaxBrightness/GlobalPreferences::NumberOfBrightnessStates;
-      int direction = (event == Ion::Events::BrightnessPlus) ? NumberOfStepsForShiftPlusMinus*delta : -delta*NumberOfStepsForShiftPlusMinus;
+      int direction = (event == Ion::Events::BrightnessPlus) ? Ion::Backlight::NumberOfStepsPerShortcut*delta : -delta*Ion::Backlight::NumberOfStepsPerShortcut;
       GlobalPreferences::sharedGlobalPreferences()->setBrightnessLevel(GlobalPreferences::sharedGlobalPreferences()->brightnessLevel()+direction);
   }
   return false;
diff --git a/apps/apps_container.h b/apps/apps_container.h
index 60efccdd9..87c0adea6 100644
--- a/apps/apps_container.h
+++ b/apps/apps_container.h
@@ -78,7 +78,6 @@ private:
   OnBoarding::App::Snapshot m_onBoardingSnapshot;
   HardwareTest::App::Snapshot m_hardwareTestSnapshot;
   USB::App::Snapshot m_usbConnectedSnapshot;
-  const int NumberOfStepsForShiftPlusMinus = 3;
 };
 
 #endif
diff --git a/apps/settings/main_controller.cpp b/apps/settings/main_controller.cpp
index 59d5075ec..12419bc55 100644
--- a/apps/settings/main_controller.cpp
+++ b/apps/settings/main_controller.cpp
@@ -2,6 +2,7 @@
 #include "../global_preferences.h"
 #include <apps/i18n.h>
 #include <assert.h>
+#include <ion/backlight.h>
 
 using namespace Poincare;
 
@@ -38,7 +39,7 @@ bool MainController::handleEvent(Ion::Events::Event event) {
   GlobalPreferences * globalPreferences = GlobalPreferences::sharedGlobalPreferences();
   if (event == Ion::Events::BrightnessPlus || event == Ion::Events::BrightnessMinus){
     int delta = Ion::Backlight::MaxBrightness/GlobalPreferences::NumberOfBrightnessStates;
-    int direction = (event == Ion::Events::BrightnessPlus) ? NumberOfStepsForShiftPlusMinus*delta : -delta*NumberOfStepsForShiftPlusMinus;
+    int direction = (event == Ion::Events::BrightnessPlus) ? Ion::Backlight::NumberOfStepsPerShortcut*delta : -delta*Ion::Backlight::NumberOfStepsPerShortcut;
     GlobalPreferences::sharedGlobalPreferences()->setBrightnessLevel(GlobalPreferences::sharedGlobalPreferences()->brightnessLevel()+direction);
     m_selectableTableView.reloadCellAtLocation(m_selectableTableView.selectedColumn(), 1);
     return true;
diff --git a/apps/settings/main_controller.h b/apps/settings/main_controller.h
index b6bf9c7d6..2a371b0c9 100644
--- a/apps/settings/main_controller.h
+++ b/apps/settings/main_controller.h
@@ -42,7 +42,6 @@ private:
   AccessibilityController m_accessibilityController;
   ExamModeController m_examModeController;
   AboutController m_aboutController;
-  const int NumberOfStepsForShiftPlusMinus = 3;
 };
 
 }
diff --git a/ion/include/ion/backlight.h b/ion/include/ion/backlight.h
index cd69ee888..89a19687c 100644
--- a/ion/include/ion/backlight.h
+++ b/ion/include/ion/backlight.h
@@ -12,6 +12,7 @@ bool isInitialized();
 void shutdown();
 void setBrightness(uint8_t b);
 uint8_t brightness();
+const int NumberOfStepsPerShortcut = 4;
 
 }
 }