diff --git a/ubo-common/src/main/resources/META-INF/resources/import-list.xed b/ubo-common/src/main/resources/META-INF/resources/import-list.xed
index c7a68cf5..d81481c4 100644
--- a/ubo-common/src/main/resources/META-INF/resources/import-list.xed
+++ b/ubo-common/src/main/resources/META-INF/resources/import-list.xed
@@ -143,7 +143,7 @@
               </label>
 
               <xed:bind xpath="DataSources[@type='provided']">
-                <select id="import-list-source-select" class="form-control col-7 custom-select">
+                <select id="datasource-source-select" class="form-control col-7" onchange="UBOImportList.toggleDataSources(this)">
                   <option value="">
                     <xed:output i18n="search.select"/>
                   </option>
@@ -164,7 +164,7 @@
 
               <label class="mycore-form-label text-nowrap pt-1"/>
               <xed:bind xpath="DataSources[@type='custom']">
-                <input id="import-list-source-custom-input" type="text" class="form-control col-7 mt-3" placeholder="{i18n:ubo.import.list.placeholder.dataSources.custom}"/>
+                <input id="datasource-input-custom" type="text" class="form-control col-7 mt-3" placeholder="{i18n:ubo.import.list.placeholder.dataSources.custom}" oninput="UBOImportList.toggleDataSources(this)"/>
               </xed:bind>
             </div>
 
diff --git a/ubo-common/src/main/resources/META-INF/resources/js/ImportList.js b/ubo-common/src/main/resources/META-INF/resources/js/ImportList.js
index 4b658132..95825d0e 100644
--- a/ubo-common/src/main/resources/META-INF/resources/js/ImportList.js
+++ b/ubo-common/src/main/resources/META-INF/resources/js/ImportList.js
@@ -1,5 +1,11 @@
 $(document).ready(function () {
-    $('select[class*="autocomplete"]').selectpicker({liveSearch:true, liveSearchNormalize:true, virtualScroll:true, showSubtext:true, size:10});
+    $('select[class*="autocomplete"]').selectpicker({
+        liveSearch: true,
+        liveSearchNormalize: true,
+        virtualScroll: true,
+        showSubtext: true,
+        size: 10
+    });
 });
 
 const UBOImportList = {
@@ -32,5 +38,21 @@ const UBOImportList = {
         } else {
             $("#submitBtn").removeAttr("disabled");
         }
+    },
+
+    toggleDataSources: function (element) {
+        switch (element.id) {
+            case "datasource-input-custom":
+                if (element.value != null && element.value.length > 0) {
+                    document.getElementById('datasource-source-select').selectedIndex = 0;
+                }
+                break;
+
+            case "datasource-source-select":
+                if (element.value != null && element.value.length > 0) {
+                    document.getElementById('datasource-input-custom').value = "";
+                }
+                break;
+        }
     }
 }