diff --git a/master/sdo_entry.c b/master/sdo_entry.c
index ef137dfe..0002af59 100644
--- a/master/sdo_entry.c
+++ b/master/sdo_entry.c
@@ -185,7 +185,7 @@ ssize_t ec_sdo_entry_format_data(
     off_t off = 0;
     unsigned int i;
 
-    if (request->data_size != entry->bit_length) {
+    if (request->data_size * 8 != entry->bit_length) {
         EC_ERR("Dictionary size of Sdo entry 0x%04X:%02X (%u bit) does not "
                 "match size of uploaded data (%u byte)!\n", entry->sdo->index,
                 entry->subindex, entry->bit_length, request->data_size);