diff --git a/CHANGELOG.md b/CHANGELOG.md
index cbab0fde..8f4e21a7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ## [UNRELEASE]
 
 ### Fixed
-
+- Fix condition check logic for dropdown field values
 - Fix validation for mandatory multiple dropdown
 
 ## [1.21.21] - 2025-03-21
diff --git a/inc/field.class.php b/inc/field.class.php
index 02d43247..4f3a4d92 100644
--- a/inc/field.class.php
+++ b/inc/field.class.php
@@ -1033,9 +1033,9 @@ function () {
                         'change',
                         'input, select, textarea',
                         function(evt) {
-                            if (evt.target.name == "itilcategories_id") {
+                            if (evt.target.name == "itilcategories_id" && {$items_id} == 0) {
                                 // Do not refresh tab container when form is reloaded
-                                // to prevent issues diues to duplicated calls
+                                // to prevent issues diues to duplicated calls (when object is new)
                                 return;
                             }
                             if ($(evt.target).closest('#{$html_id}').length > 0) {