diff --git a/src/main/java/net/runelite/mapping/ObfuscatedSignature.java b/src/main/java/net/runelite/mapping/ObfuscatedSignature.java
index 9ddcafcc7d..bb5c36d2a4 100644
--- a/src/main/java/net/runelite/mapping/ObfuscatedSignature.java
+++ b/src/main/java/net/runelite/mapping/ObfuscatedSignature.java
@@ -11,5 +11,5 @@ public @interface ObfuscatedSignature
 {
 	String signature();
 
-	String garbageValue(); // valid garbage value for last parameter. can't be an Object because Java.
+	String garbageValue() default ""; // valid garbage value for last parameter. can't be an Object because Java.
 }
diff --git a/src/main/java/net/runelite/rs/api/RSCanvas.java b/src/main/java/net/runelite/rs/api/RSCanvas.java
new file mode 100644
index 0000000000..f0295a0770
--- /dev/null
+++ b/src/main/java/net/runelite/rs/api/RSCanvas.java
@@ -0,0 +1,5 @@
+package net.runelite.rs.api;
+
+public interface RSCanvas
+{
+}