diff --git a/data/registers/hsem_v2.yaml b/data/registers/hsem_v2.yaml
index 47b8e19..3ec588e 100644
--- a/data/registers/hsem_v2.yaml
+++ b/data/registers/hsem_v2.yaml
@@ -95,7 +95,7 @@ fieldset/RLR:
     description: Semaphore ProcessID.
     bit_offset: 0
     bit_size: 8
-  - name: MASTERID
+  - name: COREID
     description: Semaphore COREID.
     bit_offset: 8
     bit_size: 4
diff --git a/data/registers/hsem_v4.yaml b/data/registers/hsem_v4.yaml
index 72b4b59..1c0794a 100644
--- a/data/registers/hsem_v4.yaml
+++ b/data/registers/hsem_v4.yaml
@@ -99,7 +99,7 @@ fieldset/CR:
   description: HSEM Clear register.
   fields:
   - name: COREID
-    description: MASTERID.
+    description: COREID.
     bit_offset: 8
     bit_size: 4
   - name: KEY
@@ -121,7 +121,7 @@ fieldset/R:
     bit_offset: 0
     bit_size: 8
   - name: COREID
-    description: Semaphore MASTERID.
+    description: Semaphore COREID.
     bit_offset: 8
     bit_size: 4
   - name: LOCK
@@ -136,7 +136,7 @@ fieldset/RLR:
     bit_offset: 0
     bit_size: 8
   - name: COREID
-    description: Semaphore MASTERID.
+    description: Semaphore COREID.
     bit_offset: 8
     bit_size: 4
   - name: LOCK