diff --git a/data/registers/sdmmc_v1.yaml b/data/registers/sdmmc_v1.yaml
index ccd9640..03b59fa 100644
--- a/data/registers/sdmmc_v1.yaml
+++ b/data/registers/sdmmc_v1.yaml
@@ -73,7 +73,7 @@ block/SDMMC:
 fieldset/ARGR:
   description: argument register
   fields:
-    - name: CMDARGR
+    - name: CMDARG
       description: Command argument
       bit_offset: 0
       bit_size: 32