diff --git a/drivers/arm/gic/v2/gicv2_helpers.c b/drivers/arm/gic/v2/gicv2_helpers.c
index 1f904c5..8c4e2f0 100644
--- a/drivers/arm/gic/v2/gicv2_helpers.c
+++ b/drivers/arm/gic/v2/gicv2_helpers.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -101,10 +101,7 @@
  */
 void gicd_set_itargetsr(uintptr_t base, unsigned int id, unsigned int target)
 {
-	unsigned byte_off = id & ((1 << ITARGETSR_SHIFT) - 1);
-	unsigned int reg_val = gicd_read_itargetsr(base, id);
-
-	gicd_write_itargetsr(base, id, reg_val | (target << (byte_off << 3)));
+	mmio_write_8(base + GICD_ITARGETSR + id, target & GIC_TARGET_CPU_MASK);
 }
 
 /*******************************************************************************