diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5a8b8b9..1559231 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Fixed
+
+- Fix ignored selection key setting when candidate per page is less than 10.
+
 ## [v2.1.3] - 2025-01-01
 
 ### Fixed
diff --git a/src/IBusChewingLookupTable.c b/src/IBusChewingLookupTable.c
index 0e9ef6a..190893f 100644
--- a/src/IBusChewingLookupTable.c
+++ b/src/IBusChewingLookupTable.c
@@ -38,7 +38,7 @@ void ibus_chewing_lookup_table_resize(IBusLookupTable *iTable, ChewingContext *c
         }
     }
     chewing_set_candPerPage(context, len);
-    chewing_set_selKey(context, selKSym, len);
+    chewing_set_selKey(context, selKSym, MAX_SELKEY);
 
     gboolean verticalLookupTable = g_settings_get_boolean(settings, "vertical-lookup-table");