diff --git a/data-import-support/src/main/java/org/folio/dataimport/util/marc/MarcFieldEditor.java b/data-import-support/src/main/java/org/folio/dataimport/util/marc/MarcFieldEditor.java
index 881dbd3..d6830cd 100644
--- a/data-import-support/src/main/java/org/folio/dataimport/util/marc/MarcFieldEditor.java
+++ b/data-import-support/src/main/java/org/folio/dataimport/util/marc/MarcFieldEditor.java
@@ -31,16 +31,17 @@ private MarcFieldEditor() {
    * @param replace    if true, replaces an existing field with the same tag; if false, appends a new field
    */
   public static void addOrReplaceControlField(Record marcRecord, String tag, String value, boolean replace) {
-    var newControlField = MarcFactory.newInstance().newControlField(tag, value);
+    ControlField newField = MarcFactory.newInstance().newControlField(tag, value);
     if (replace) {
-      ControlField existing = (ControlField) marcRecord.getVariableField(tag);
-      if (existing != null) {
-        marcRecord.removeVariableField(existing);
+      List<ControlField> controlFields = marcRecord.getControlFields();
+      for (int i = 0; i < controlFields.size(); i++) {
+        if (tag.equals(controlFields.get(i).getTag())) {
+          controlFields.set(i, newField);
+          return;
+        }
       }
-      marcRecord.addVariableField(newControlField);
-    } else {
-      marcRecord.addVariableField(newControlField);
     }
+    marcRecord.addVariableField(newField);
   }
 
   /**
diff --git a/data-import-support/src/test/java/org/folio/dataimport/util/marc/MarcFieldEditorTest.java b/data-import-support/src/test/java/org/folio/dataimport/util/marc/MarcFieldEditorTest.java
index b12b98f..08edc6f 100644
--- a/data-import-support/src/test/java/org/folio/dataimport/util/marc/MarcFieldEditorTest.java
+++ b/data-import-support/src/test/java/org/folio/dataimport/util/marc/MarcFieldEditorTest.java
@@ -81,6 +81,27 @@ void shouldReplaceControlFieldInPlace_whenReplaceIsTrueAndFieldExists() {
     assertThat(MarcFieldEditor.getControlFieldValue(marcRecord, "005")).isEqualTo("new-value");
   }
 
+  @DisplayName("should keep the replaced control field at its original position, not append it at the end — "
+    + "regression guard against removeVariableField+addVariableField which would move the field to the tail")
+  @Test
+  void shouldKeepReplacedControlFieldAtOriginalPosition_notAppendedAtEnd() {
+    // arrange: realistic fixture with 001 < 005 < 008 — same order as parsedMarcRecord.json used in
+    // AdditionalFieldsUtilTest; 005 sits between two other control fields
+    Record marcRecord = newRecord();
+    marcRecord.addVariableField(FACTORY.newControlField("001", "ybp7406411"));
+    marcRecord.addVariableField(FACTORY.newControlField("005", "20120404100627.6"));
+    marcRecord.addVariableField(FACTORY.newControlField("008", "120329s2011    sz a"));
+
+    // act
+    MarcFieldEditor.addOrReplaceControlField(marcRecord, "005", "20240909120000.0", true);
+
+    // assert: 005 is still at index 1 (between 001 and 008), not moved to the end
+    List<ControlField> controlFields = marcRecord.getControlFields();
+    assertThat(controlFields).hasSize(3);
+    assertThat(controlFields.stream().map(VariableField::getTag)).containsExactly("001", "005", "008");
+    assertThat(MarcFieldEditor.getControlFieldValue(marcRecord, "005")).isEqualTo("20240909120000.0");
+  }
+
   @DisplayName("should create a new ff-indicator data field and add the subfield when no matching field exists")
   @Test
   void shouldCreateNewDataField_whenNoExistingFieldMatchesIndicators() {