diff --git a/client b/client
index 1d7d88e4..d8cbdbfc 160000
--- a/client
+++ b/client
@@ -1 +1 @@
-Subproject commit 1d7d88e4c6640c3172afd45be18a1f1cea51c584
+Subproject commit d8cbdbfcf180bd769265c82b458658691271a1b4
diff --git a/common/proto/table_structure.proto b/common/proto/table_structure.proto
index df653545..d2da235f 100644
--- a/common/proto/table_structure.proto
+++ b/common/proto/table_structure.proto
@@ -84,4 +84,7 @@ message TableColumn {
 
   // Logical source column name, empty for ordinary and system columns.
   string generated_from = 8;
+
+  // True when clients may offer this column in an alias rename picker.
+  bool renameable = 9;
 }
diff --git a/common/src/proto/descriptor.bin b/common/src/proto/descriptor.bin
index 358dde94..2505535c 100644
Binary files a/common/src/proto/descriptor.bin and b/common/src/proto/descriptor.bin differ
diff --git a/common/src/proto/komp_ac.table_structure.rs b/common/src/proto/komp_ac.table_structure.rs
index 6f49055c..8bd1e790 100644
--- a/common/src/proto/komp_ac.table_structure.rs
+++ b/common/src/proto/komp_ac.table_structure.rs
@@ -67,6 +67,9 @@ pub struct TableColumn {
     /// Logical source column name, empty for ordinary and system columns.
     #[prost(string, tag = "8")]
     pub generated_from: ::prost::alloc::string::String,
+    /// True when clients may offer this column in an alias rename picker.
+    #[prost(bool, tag = "9")]
+    pub renameable: bool,
 }
 /// Generated client implementations.
 pub mod table_structure_service_client {
diff --git a/server b/server
index da8681a1..94bf8fb2 160000
--- a/server
+++ b/server
@@ -1 +1 @@
-Subproject commit da8681a1c2df5c254ee9f6f1dc2c1f944e171185
+Subproject commit 94bf8fb25b8c8b556abb903c7ea15c5eae515b1d
diff --git a/web/src/pages/admin/table_definition/loader.rs b/web/src/pages/admin/table_definition/loader.rs
index 61cacc26..ebe3ba37 100644
--- a/web/src/pages/admin/table_definition/loader.rs
+++ b/web/src/pages/admin/table_definition/loader.rs
@@ -177,6 +177,9 @@ pub(crate) async fn load_page(
                                 generated_from: behavior
                                     .map(|behavior| behavior.generated_from.clone())
                                     .unwrap_or_default(),
+                                // Renaming changes shared table metadata, so an
+                                // incomplete server capability response does
+                                // not grant permission by omission.
                                 renameable: behavior.is_some_and(|behavior| behavior.renameable),
                             }
                         })