diff --git a/src/forgeInject/java/mcp/MethodsReturnNonnullByDefault.java b/src/forgeInject/java/mcp/MethodsReturnNonnullByDefault.java
new file mode 100644
index 00000000..a60d082e
--- /dev/null
+++ b/src/forgeInject/java/mcp/MethodsReturnNonnullByDefault.java
@@ -0,0 +1,10 @@
+package mcp;
+
+/**
+ * A dummy class, required for some Forge classes to load.
+ *
+ * @deprecated Don't use this in your mods. JetBrains annotations are there for you.
+ */
+@Deprecated
+public @interface MethodsReturnNonnullByDefault {
+}