diff --git a/firmware/target/arm/as3525/sd-as3525v2.c b/firmware/target/arm/as3525/sd-as3525v2.c
index 1c427b36f6..736bbf0b15 100644
--- a/firmware/target/arm/as3525/sd-as3525v2.c
+++ b/firmware/target/arm/as3525/sd-as3525v2.c
@@ -886,7 +886,7 @@ static int sd_transfer_sectors(IF_MD2(int drive,) unsigned long start,
         }
         else
         {
-            dma_buf = AS3525(&aligned_buffer[0]);
+            dma_buf = AS3525_PHYSICAL_ADDR(&aligned_buffer[0]);
             if(transfer > UNALIGNED_NUM_SECTORS)
                 transfer = UNALIGNED_NUM_SECTORS;