diff --git a/api/envoy/config/route/v3/route_components.proto b/api/envoy/config/route/v3/route_components.proto
index 01ffdb45c3e91..63f8a60bab7e4 100644
--- a/api/envoy/config/route/v3/route_components.proto
+++ b/api/envoy/config/route/v3/route_components.proto
@@ -473,7 +473,7 @@ message RouteMatch {
   }
 
   // Indicates that prefix/path matching should be case sensitive. The default
-  // is true.
+  // is true. Ignored for safe_regex matching.
   google.protobuf.BoolValue case_sensitive = 4;
 
   // Indicates that the route should additionally match on a runtime key. Every time the route
diff --git a/api/envoy/config/route/v4alpha/route_components.proto b/api/envoy/config/route/v4alpha/route_components.proto
index ac062a195be09..66d6e3c131251 100644
--- a/api/envoy/config/route/v4alpha/route_components.proto
+++ b/api/envoy/config/route/v4alpha/route_components.proto
@@ -474,7 +474,7 @@ message RouteMatch {
   }
 
   // Indicates that prefix/path matching should be case sensitive. The default
-  // is true.
+  // is true. Ignored for safe_regex matching.
   google.protobuf.BoolValue case_sensitive = 4;
 
   // Indicates that the route should additionally match on a runtime key. Every time the route
diff --git a/generated_api_shadow/envoy/config/route/v3/route_components.proto b/generated_api_shadow/envoy/config/route/v3/route_components.proto
index c5344a195d430..ada5b1231aa11 100644
--- a/generated_api_shadow/envoy/config/route/v3/route_components.proto
+++ b/generated_api_shadow/envoy/config/route/v3/route_components.proto
@@ -482,7 +482,7 @@ message RouteMatch {
   }
 
   // Indicates that prefix/path matching should be case sensitive. The default
-  // is true.
+  // is true. Ignored for safe_regex matching.
   google.protobuf.BoolValue case_sensitive = 4;
 
   // Indicates that the route should additionally match on a runtime key. Every time the route
diff --git a/generated_api_shadow/envoy/config/route/v4alpha/route_components.proto b/generated_api_shadow/envoy/config/route/v4alpha/route_components.proto
index 83b6e36d98758..a942590263d7a 100644
--- a/generated_api_shadow/envoy/config/route/v4alpha/route_components.proto
+++ b/generated_api_shadow/envoy/config/route/v4alpha/route_components.proto
@@ -475,7 +475,7 @@ message RouteMatch {
   }
 
   // Indicates that prefix/path matching should be case sensitive. The default
-  // is true.
+  // is true. Ignored for safe_regex matching.
   google.protobuf.BoolValue case_sensitive = 4;
 
   // Indicates that the route should additionally match on a runtime key. Every time the route