diff --git a/core/modules/content_translation/content_translation.pages.inc b/core/modules/content_translation/content_translation.pages.inc
index ac36ff7..a46702e 100644
--- a/core/modules/content_translation/content_translation.pages.inc
+++ b/core/modules/content_translation/content_translation.pages.inc
@@ -30,11 +30,10 @@ function content_translation_overview(EntityInterface $entity) {
     $rel[$name] = $entity->getSystemPath($name);
   }
 
-  $header = array(t('Language'), t('Translation'), t('Source language'), t('Status'), t('Operations'));
+  $header = array(t('Language'), t('Translation'), t('Status'), t('Operations'));
   $rows = array();
 
   if (\Drupal::languageManager()->isMultilingual()) {
-
     // Determine whether the current entity is translatable.
     $translatable = FALSE;
     foreach (field_info_instances($entity->getEntityTypeId(), $entity->bundle()) as $instance) {
@@ -44,6 +43,31 @@ function content_translation_overview(EntityInterface $entity) {
       }
     }
 
+    // Determine which languages have been used as a source for other
+    // translations.
+    $language_as_source = array();
+    foreach ($languages as $language) {
+      $langcode = $language->id;
+
+      $is_original = $langcode == $original;
+      // Original has no source.
+      if (!$is_original && isset($translations[$langcode])) {
+        // Non-original existing translation in the translation set: keep track
+        // of the source language.
+        $source = isset($entity->translation[$langcode]['source']) ? $entity->translation[$langcode]['source'] : '';
+        // Note the source language has been used as a source.
+        $language_as_source[$source] = TRUE;
+      }
+    }
+
+    // Only show the translations column if there is more than one source value.
+    $show_source_column = count($language_as_source) > 1;
+
+    // Set up the translations table.
+    if ($show_source_column) {
+      $header = array(t('Language'), t('Translation'), t('Source language'), t('Status'), t('Operations'));
+    }
+
     foreach ($languages as $language) {
       $language_name = $language->name;
       $langcode = $language->id;
@@ -125,7 +149,12 @@ function content_translation_overview(EntityInterface $entity) {
         $status = t('Not translated');
       }
 
-      $rows[] = array($language_name, $row_title, $source_name, $status, $operations);
+      if ($show_source_column) {
+        $rows[] = array($language_name, $row_title, $source_name, $status, $operations);
+      }
+      else {
+        $rows[] = array($language_name, $row_title, $status, $operations);
+      }
     }
   }