diff --git a/firmware/export/config/vibe500.h b/firmware/export/config/vibe500.h
index 915b93b1c6..b63bfa7447 100644
--- a/firmware/export/config/vibe500.h
+++ b/firmware/export/config/vibe500.h
@@ -192,3 +192,8 @@
 #define BOOTDIR "/.system"
 
 #define ICODE_ATTR_TREMOR_NOT_MDCT
+
+/* DMA is used only for reading on PP502x because although reads are ~8x faster
+ * writes appear to be ~25% slower.
+ */
+#define HAVE_ATA_DMA