diff --git a/common/src/main/java/li/cil/tis3d/common/network/Network.java b/common/src/main/java/li/cil/tis3d/common/network/Network.java
index 684541bb..7aa810e7 100644
--- a/common/src/main/java/li/cil/tis3d/common/network/Network.java
+++ b/common/src/main/java/li/cil/tis3d/common/network/Network.java
@@ -80,7 +80,7 @@ public static void initialize() {
     }
 
     private static <T extends AbstractMessage> void registerMessage(final Class<T> type, final Function<FriendlyByteBuf, T> decoder, final NetworkManager.Side side) {
-        final ResourceLocation id = new ResourceLocation(API.MOD_ID, type.getSimpleName().replaceAll("Message$", "").toLowerCase());
+        final ResourceLocation id = new ResourceLocation(API.MOD_ID, type.getSimpleName().replaceAll("Message$", "").toLowerCase(Locale.US));
         MESSAGE_IDS.put(type, id);
         if (side != NetworkManager.serverToClient() || Platform.getEnv() == EnvType.CLIENT) {
             NetworkManager.registerReceiver(side, id, (buffer, context) -> {