diff --git a/blg_ha.schema.yaml b/blg_ha.schema.yaml
index fcf6df7..9681be9 100644
--- a/blg_ha.schema.yaml
+++ b/blg_ha.schema.yaml
@@ -64,7 +64,7 @@ speller:
     - derive/IR/i/		#魚韻讀i特字
     - derive/ir/u/
     - derive/ur/u/
-    - derive/er(h?)(.)/e$1$2/
+    - derive/er([^eptkmng]*)(h?)$/e$1$2/
     - derive/Er/er/
     - derive/Er/e/
     - derive/ere/ue/
diff --git a/blg_tai.schema.yaml b/blg_tai.schema.yaml
index d9c4459..ddc39f3 100644
--- a/blg_tai.schema.yaml
+++ b/blg_tai.schema.yaml
@@ -66,8 +66,8 @@ speller:
     - derive/ir/u/
     - derive/ir/i/
     - derive/ur/u/
-    - derive/er(h?)(.)/ue$1$2/		#偏漳腔，過讀kue
-    #- derive/er(h?)(.)/e$1$2/		#偏泉腔，過讀ke
+    - derive/er([^eptkmng]*)(h?)$/ue$1$2/		#偏漳腔，過讀kue
+    #- derive/er([^eptkmng]*)(h?)$/e$1$2/		#偏泉腔，過讀ke
     - derive/Er/e/
     - derive/Er/er/		#鹿港
     - derive/ere/e/		#偏漳腔，雞讀ke
diff --git a/blg_tsiang.schema.yaml b/blg_tsiang.schema.yaml
index cbc18fe..2f315ef 100644
--- a/blg_tsiang.schema.yaml
+++ b/blg_tsiang.schema.yaml
@@ -60,7 +60,7 @@ speller:
     - derive/IR/ir/
     - derive/ir/i/
     - derive/ur/u/
-    - derive/er(h?)(.)/ue$1$2/
+    - derive/er([^eptkmng]*)(h?)$/ue$1$2/
     - derive/Er/e/
     - derive/ere/e/
     - derive/uainn/uenn/