diff --git a/libraries/DataFlash/DataFlash_File.cpp b/libraries/DataFlash/DataFlash_File.cpp
index 0e829209a54..d7098e18cf6 100644
--- a/libraries/DataFlash/DataFlash_File.cpp
+++ b/libraries/DataFlash/DataFlash_File.cpp
@@ -55,8 +55,12 @@ DataFlash_File::DataFlash_File(const char *log_directory) :
     _writebuf_chunk(512),
 #elif defined(CONFIG_ARCH_BOARD_VRBRAIN_V51)
     _writebuf_chunk(512),
+#elif defined(CONFIG_ARCH_BOARD_VRBRAIN_V52)
+    _writebuf_chunk(512),
 #elif defined(CONFIG_ARCH_BOARD_VRUBRAIN_V51)
     _writebuf_chunk(512),
+#elif defined(CONFIG_ARCH_BOARD_VRUBRAIN_V52)
+    _writebuf_chunk(512),
 #elif defined(CONFIG_ARCH_BOARD_VRHERO_V10)
     _writebuf_chunk(512),
 #else