diff --git a/default.yaml b/default.yaml
index 6be5c449..7a62f227 100644
--- a/default.yaml
+++ b/default.yaml
@@ -885,7 +885,7 @@ limits:
     whowas-entries: 100
 
     # maximum length of channel lists (beI modes)
-    chan-list-modes: 150
+    chan-list-modes: 100
 
     # maximum number of messages to accept during registration (prevents
     # DoS / resource exhaustion attacks):
diff --git a/traditional.yaml b/traditional.yaml
index 6691039e..922f5c37 100644
--- a/traditional.yaml
+++ b/traditional.yaml
@@ -856,7 +856,7 @@ limits:
     whowas-entries: 100
 
     # maximum length of channel lists (beI modes)
-    chan-list-modes: 150
+    chan-list-modes: 100
 
     # maximum number of messages to accept during registration (prevents
     # DoS / resource exhaustion attacks):