diff --git a/custom/rime_ice.custom.yaml b/custom/rime_ice.custom.yaml
index 27ec731..ec94cdb 100644
--- a/custom/rime_ice.custom.yaml
+++ b/custom/rime_ice.custom.yaml
@@ -9,12 +9,12 @@ patch:
     algebra:
       ### 模糊音
       # 声母
-      - derive/^([zcs])h/$1/          # z c s → zh ch sh
-      - derive/^([zcs])([^h])/$1h$2/  # zh ch sh → z c s
-      - derive/^l/n/  # n → l
-      - derive/^n/l/  # l → n
-      - derive/^f/h/  # …………
-      - derive/^h/f/  # …………
+      # - derive/^([zcs])h/$1/          # z c s → zh ch sh
+      # - derive/^([zcs])([^h])/$1h$2/  # zh ch sh → z c s
+      # - derive/^l/n/  # n → l
+      # - derive/^n/l/  # l → n
+      # - derive/^f/h/  # …………
+      # - derive/^h/f/  # …………
       # - derive/^l/r/
       # - derive/^r/l/
       # - derive/^g/k/