diff --git a/Source/SenseGlove/Private/SenseGlove/GameFramework/SGGameUserSettings.cpp b/Source/SenseGlove/Private/SenseGlove/GameFramework/SGGameUserSettings.cpp
index 1f834796..b14acfaa 100644
--- a/Source/SenseGlove/Private/SenseGlove/GameFramework/SGGameUserSettings.cpp
+++ b/Source/SenseGlove/Private/SenseGlove/GameFramework/SGGameUserSettings.cpp
@@ -196,7 +196,9 @@ void USGGameUserSettings::SetEngineScalabilitySettings(ESGEngineScalabilitySetti
         ScalabilityQuality.SetEffectsQuality(ScalabilityValue);
         ScalabilityQuality.SetFoliageQuality(ScalabilityValue);
         ScalabilityQuality.SetShadingQuality(ScalabilityValue);
+#if ENGINE_MAJOR_VERSION >= 5 && ENGINE_MINOR_VERSION >= 4
         ScalabilityQuality.SetLandscapeQuality(ScalabilityValue);
+#endif  /* ENGINE_MAJOR_VERSION >= 5 && ENGINE_MINOR_VERSION >= 4 */
     }
     else
     {
@@ -269,7 +271,9 @@ bool USGGameUserSettings::FImpl::DoesCurrentSettingsMatch(const ESGEngineScalabi
     const int32 CurrentEffectQuality = Owner->ScalabilityQuality.EffectsQuality;
     const int32 CurrentFoliageQuality = Owner->ScalabilityQuality.FoliageQuality;
     const int32 CurrentShadingQuality = Owner->ScalabilityQuality.ShadingQuality;
+#if ENGINE_MAJOR_VERSION >= 5 && ENGINE_MINOR_VERSION >= 4
     const int32 CurrentLandscapeQuality = Owner->ScalabilityQuality.LandscapeQuality;
+#endif  /* ENGINE_MAJOR_VERSION >= 5 && ENGINE_MINOR_VERSION >= 4 */
 
     if (FMath::IsNearlyEqual(CurrentResolutionScaleNormalized, ResolutionScaleNormalized)
         && CurrentViewDistanceQuality == ScalabilityValue
@@ -282,7 +286,10 @@ bool USGGameUserSettings::FImpl::DoesCurrentSettingsMatch(const ESGEngineScalabi
         && CurrentEffectQuality == ScalabilityValue
         && CurrentFoliageQuality == ScalabilityValue
         && CurrentShadingQuality == ScalabilityValue
-        && CurrentLandscapeQuality == ScalabilityValue)
+#if ENGINE_MAJOR_VERSION >= 5 && ENGINE_MINOR_VERSION >= 4
+        && CurrentLandscapeQuality == ScalabilityValue
+#endif  /* ENGINE_MAJOR_VERSION >= 5 && ENGINE_MINOR_VERSION >= 4 */
+        )
     {
         return true;
     }
diff --git a/Source/SenseGloveEditor/Public/SGEditor/SGPluginStyle.h b/Source/SenseGloveEditor/Public/SGEditor/SGPluginStyle.h
index 61ec8e09..e6b0ee6e 100644
--- a/Source/SenseGloveEditor/Public/SGEditor/SGPluginStyle.h
+++ b/Source/SenseGloveEditor/Public/SGEditor/SGPluginStyle.h
@@ -35,6 +35,7 @@
 
 #pragma once
 
+#include "Styling/SlateStyle.h"
 #include "Templates/SharedPointer.h"
 
 class ISlateStyle;