diff --git a/mods/default/tools.lua b/mods/default/tools.lua
index 160a529ee..002abc92e 100644
--- a/mods/default/tools.lua
+++ b/mods/default/tools.lua
@@ -49,7 +49,7 @@ function register_tool(name, material, mining_speed, harvest_capability)
 	elseif name == "shovel" then
 		tool_def.effective_on = {
 			"group:om_material_dirt",
-			"group:om_material:sand"
+			"group:om_material_sand"
 		}
 
 		tool_def.on_item_activated = function(pos, block, player, world, client, server)
diff --git a/resources/shaders/game.v.glsl b/resources/shaders/game.v.glsl
index 5f3fe4ccc..09d89bcfd 100644
--- a/resources/shaders/game.v.glsl
+++ b/resources/shaders/game.v.glsl
@@ -49,7 +49,7 @@ void main() {
 	v_lightValue = lightValue;
 
 	if (ambientOcclusion != 5) {
-		const float aovalues[] = float[](0.5, 0.75, 0.9, 1.0);
+		const float aovalues[] = float[](0.25, 0.5, 0.75, 1.0);
 		v_ambientOcclusion = aovalues[int(ambientOcclusion)];
 	} else {
 		v_ambientOcclusion = 1.0;
diff --git a/source/client/core/Config.cpp b/source/client/core/Config.cpp
index 0147f72b4..1a893c170 100644
--- a/source/client/core/Config.cpp
+++ b/source/client/core/Config.cpp
@@ -50,7 +50,7 @@ bool Config::isCrosshairVisible = true;
 
 // Graphics
 u16 Config::renderDistance = 8;
-u8 Config::ambientOcclusion = 2;
+u8 Config::ambientOcclusion = 1;
 bool Config::isSmoothLightingEnabled = true;
 bool Config::isWireframeModeEnabled = false;
 bool Config::isFullscreenModeEnabled = false;
diff --git a/source/client/states/SettingsMenuState.cpp b/source/client/states/SettingsMenuState.cpp
index 887ea6cd4..a2874572d 100644
--- a/source/client/states/SettingsMenuState.cpp
+++ b/source/client/states/SettingsMenuState.cpp
@@ -220,8 +220,8 @@ void SettingsMenuState::addGraphicsButtons() {
 
 	const std::string aoValueNames[3] = {
 		"OFF",
-		"Normal",
-		"Smooth Lighting"
+		"Fast",
+		"Fancy"
 	};
 
 	m_menuWidget.addButton(std::string("Ambient Occlusion: ") + aoValueNames[Config::ambientOcclusion], [&, aoValueNames] (TextButton &button) {