diff --git a/ChocolArm64/Instruction/AInstEmitSystem.cs b/ChocolArm64/Instruction/AInstEmitSystem.cs
index 1c5d02634f..a365398ff7 100644
--- a/ChocolArm64/Instruction/AInstEmitSystem.cs
+++ b/ChocolArm64/Instruction/AInstEmitSystem.cs
@@ -14,6 +14,11 @@ namespace ChocolArm64.Instruction
             //Execute as no-op.
         }
 
+        public static void Isb(AILEmitterCtx Context)
+        {
+            //Execute as no-op.
+        }
+
         public static void Mrs(AILEmitterCtx Context)
         {
             AOpCodeSystem Op = (AOpCodeSystem)Context.CurrOp;
@@ -130,4 +135,4 @@ namespace ChocolArm64.Instruction
             return Id;
         }
     }
-}
\ No newline at end of file
+}