diff --git a/targets/corstone-310/target.cpp b/targets/corstone-310/target.cpp
index 3b2820f..a91bc67 100644
--- a/targets/corstone-310/target.cpp
+++ b/targets/corstone-310/target.cpp
@@ -389,7 +389,7 @@
                          1,                 // Non-Privileged
                          0),                // eXecute Never disabled
             ARM_MPU_RLAR(0x213fffff,        // Limit
-                         Mpu::WBWARA_index) // Attribute index - Write-Back, Write-Allocate, Read-allocate
+                         Mpu::WTWARA_index) // Attribute index - Write-Through, Write-Allocate, Read-allocate
         },
         {
             // SSE-300 internal SRAM (S)
@@ -399,7 +399,7 @@
                          1,                 // Non-Privileged
                          0),                // eXecute Never disabled
             ARM_MPU_RLAR(0x313fffff,        // Limit
-                         Mpu::WBWARA_index) // Attribute index - Write-Back, Write-Allocate, Read-allocate
+                         Mpu::WTWARA_index) // Attribute index - Write-Through, Write-Allocate, Read-allocate
         },
         {
             // DDR (NS)