diff --git a/include/lib/cpus/aarch64/cortex_a520.h b/include/lib/cpus/aarch64/cortex_a520.h
index 1c5f886..619a15d 100644
--- a/include/lib/cpus/aarch64/cortex_a520.h
+++ b/include/lib/cpus/aarch64/cortex_a520.h
@@ -12,6 +12,8 @@
 /*******************************************************************************
  * CPU Extended Control register specific definitions
  ******************************************************************************/
+#define CORTEX_A520_CPUACTLR_EL1				S3_0_C15_C1_0
+
 #define CORTEX_A520_CPUECTLR_EL1				S3_0_C15_C1_4
 
 /*******************************************************************************