diff --git a/src/main/java/com/enderio/core/client/gui/bettermodlist/GuiEnhancedModList.java b/src/main/java/com/enderio/core/client/gui/bettermodlist/GuiEnhancedModList.java
index 221a393..f19d10a 100644
--- a/src/main/java/com/enderio/core/client/gui/bettermodlist/GuiEnhancedModList.java
+++ b/src/main/java/com/enderio/core/client/gui/bettermodlist/GuiEnhancedModList.java
@@ -4,6 +4,7 @@ import java.lang.reflect.Field;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
+import java.util.Locale;
 
 import com.enderio.core.EnderCore;
 import com.enderio.core.common.config.ConfigHandler;
@@ -54,8 +55,8 @@ public class GuiEnhancedModList extends GuiModList {
 
     @Override
     public int compare(ModContainer o1, ModContainer o2) {
-      String name1 = StringUtils.stripControlCodes(o1.getName()).toLowerCase();
-      String name2 = StringUtils.stripControlCodes(o2.getName()).toLowerCase();
+      String name1 = StringUtils.stripControlCodes(o1.getName()).toLowerCase(Locale.US);
+      String name2 = StringUtils.stripControlCodes(o2.getName()).toLowerCase(Locale.US);
       switch (type) {
       case A_TO_Z:
         return name1.compareTo(name2);
@@ -234,7 +235,7 @@ public class GuiEnhancedModList extends GuiModList {
     List<ModContainer> mods = getMods();
     mods.clear();
     for (ModContainer m : Loader.instance().getActiveModList()) {
-      if (m.getName().toLowerCase().contains(search.getText().toLowerCase()) && m.getMetadata().parentMod == null) {
+      if (m.getName().toLowerCase(Locale.US).contains(search.getText().toLowerCase(Locale.US)) && m.getMetadata().parentMod == null) {
         mods.add(m);
       }
     }
diff --git a/src/main/java/com/enderio/core/client/render/TechneUtil.java b/src/main/java/com/enderio/core/client/render/TechneUtil.java
index e614d05..12651b3 100644
--- a/src/main/java/com/enderio/core/client/render/TechneUtil.java
+++ b/src/main/java/com/enderio/core/client/render/TechneUtil.java
@@ -37,6 +37,7 @@ package com.enderio.core.client.render;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 
 import net.minecraft.block.Block;
@@ -226,12 +227,12 @@ public class TechneUtil {
   }
 
   public static Map<String, GroupObject> getModel(String modid, String modelPath) {
-    TechneModel tm = (TechneModel) modelLoader.loadInstance(new ResourceLocation(modid.toLowerCase(), modelPath + ".tcn"));
+    TechneModel tm = (TechneModel) modelLoader.loadInstance(new ResourceLocation(modid.toLowerCase(Locale.US), modelPath + ".tcn"));
     return TechneUtil.bakeModel(tm, 1f / 16, new Matrix4f().scale(new Vector3f(-1, -1, 1)));
   }
 
   public static Collection<GroupObject> getModelAll(String modid, String modelPath) {
-    TechneModel tm = (TechneModel) modelLoader.loadInstance(new ResourceLocation(modid.toLowerCase(), modelPath + ".tcn"));
+    TechneModel tm = (TechneModel) modelLoader.loadInstance(new ResourceLocation(modid.toLowerCase(Locale.US), modelPath + ".tcn"));
     return TechneUtil.bakeModel(tm, 1f / 16, new Matrix4f().scale(new Vector3f(-1, -1, 1))).values();
   }
   
diff --git a/src/main/java/com/enderio/core/common/config/AbstractConfigHandler.java b/src/main/java/com/enderio/core/common/config/AbstractConfigHandler.java
index 807ae29..c013fa0 100644
--- a/src/main/java/com/enderio/core/common/config/AbstractConfigHandler.java
+++ b/src/main/java/com/enderio/core/common/config/AbstractConfigHandler.java
@@ -4,6 +4,7 @@ import java.io.File;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
+import java.util.Locale;
 
 import lombok.NonNull;
 import net.minecraftforge.common.config.ConfigCategory;
@@ -46,7 +47,7 @@ public abstract class AbstractConfigHandler implements IConfigHandler
 
         public String lc()
         {
-            return name.toLowerCase();
+            return name.toLowerCase(Locale.US);
         }
     }
 
diff --git a/src/main/java/com/enderio/core/common/config/ConfigHandler.java b/src/main/java/com/enderio/core/common/config/ConfigHandler.java
index 16982bd..3b3e043 100644
--- a/src/main/java/com/enderio/core/common/config/ConfigHandler.java
+++ b/src/main/java/com/enderio/core/common/config/ConfigHandler.java
@@ -1,6 +1,7 @@
 package com.enderio.core.common.config;
 
 import java.io.File;
+import java.util.Locale;
 
 import net.minecraftforge.common.config.Configuration;
 
@@ -156,7 +157,7 @@ public class ConfigHandler extends AbstractConfigHandler implements ITweakConfig
   }
 
   public void loadRightClickCrops() {
-    JsonConfigReader<PlantInfo> reader = new JsonConfigReader<PlantInfo>(new ModToken(EnderCore.class, EnderCore.MODID.toLowerCase() + "/config"),
+    JsonConfigReader<PlantInfo> reader = new JsonConfigReader<PlantInfo>(new ModToken(EnderCore.class, EnderCore.MODID.toLowerCase(Locale.US) + "/config"),
         enderConfigFolder.getAbsolutePath() + "/cropConfig.json", PlantInfo.class);
     for (PlantInfo i : reader) {
       i.init();
diff --git a/src/main/java/com/enderio/core/common/util/ResourcePackAssembler.java b/src/main/java/com/enderio/core/common/util/ResourcePackAssembler.java
index 5c31767..7304a83 100644
--- a/src/main/java/com/enderio/core/common/util/ResourcePackAssembler.java
+++ b/src/main/java/com/enderio/core/common/util/ResourcePackAssembler.java
@@ -5,6 +5,7 @@ import java.io.FileWriter;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Locale;
 
 import lombok.AllArgsConstructor;
 import net.minecraft.client.Minecraft;
@@ -76,7 +77,7 @@ public class ResourcePackAssembler
         this.dir = directory;
         this.zip = new File(dir.getAbsolutePath() + ".zip");
         this.name = packName;
-        this.modid = modid.toLowerCase();
+        this.modid = modid.toLowerCase(Locale.US);
         this.mcmeta = String.format(MC_META_BASE, this.name);
     }