diff --git a/arm_compute/core/Types.h b/arm_compute/core/Types.h
index 382b7f4..8e0173c 100644
--- a/arm_compute/core/Types.h
+++ b/arm_compute/core/Types.h
@@ -582,6 +582,7 @@
     NEG,   /**< Negate */
     LOG,   /**< Natural Logarithm */
     ABS,   /**< Absolute value */
+    SIN,   /**< Sine */
 };
 
 /** The normalization type used for the normalization layer */