diff --git a/data/registers/rcc_f3.yaml b/data/registers/rcc_f3.yaml
index 008f091..abeff29 100644
--- a/data/registers/rcc_f3.yaml
+++ b/data/registers/rcc_f3.yaml
@@ -718,6 +718,11 @@ fieldset/CFGR3:
       bit_offset: 11
       bit_size: 1
       enum: TIMSW
+    - name: HRTIM1SW
+      description: Hrtim1 clock source selection
+      bit_offset: 12
+      bit_size: 1
+      enum: TIMSW
     - name: TIM17SW
       description: Timer17 clock source selection
       bit_offset: 13