diff --git a/admin/tool/uploadcourse/classes/course.php b/admin/tool/uploadcourse/classes/course.php
index c0f7b539b2f..6f2cffa410d 100644
--- a/admin/tool/uploadcourse/classes/course.php
+++ b/admin/tool/uploadcourse/classes/course.php
@@ -720,6 +720,12 @@ class tool_uploadcourse_course {
             }
         }
 
+        // Visibility can only be 0 or 1.
+        if (!empty($coursedata['visible']) AND !($coursedata['visible'] == 0 OR $coursedata['visible'] == 1)) {
+            $this->error('invalidvisibilitymode', new lang_string('invalidvisibilitymode', 'tool_uploadcourse'));
+            return false;
+        }
+
         // Saving data.
         $this->data = $coursedata;
         $this->enrolmentdata = tool_uploadcourse_helper::get_enrolment_data($this->rawdata);
diff --git a/admin/tool/uploadcourse/lang/en/tool_uploadcourse.php b/admin/tool/uploadcourse/lang/en/tool_uploadcourse.php
index 6c20d8f4962..db95617ab7d 100644
--- a/admin/tool/uploadcourse/lang/en/tool_uploadcourse.php
+++ b/admin/tool/uploadcourse/lang/en/tool_uploadcourse.php
@@ -90,6 +90,7 @@ $string['invalidcsvfile'] = 'Invalid input CSV file';
 $string['invalidencoding'] = 'Invalid encoding';
 $string['invalidmode'] = 'Invalid mode selected';
 $string['invalideupdatemode'] = 'Invalid update mode selected';
+$string['invalidvisibilitymode'] = 'Invalid visibility mode given';
 $string['invalidroles'] = 'Invalid role names: {$a}';
 $string['invalidshortname'] = 'Invalid shortname';
 $string['missingmandatoryfields'] = 'Missing value for mandatory fields: {$a}';
diff --git a/admin/tool/uploadcourse/tests/course_test.php b/admin/tool/uploadcourse/tests/course_test.php
index 092469fc364..c0d29e0d15a 100644
--- a/admin/tool/uploadcourse/tests/course_test.php
+++ b/admin/tool/uploadcourse/tests/course_test.php
@@ -82,6 +82,16 @@ class tool_uploadcourse_course_testcase extends advanced_testcase {
         $this->assertArrayHasKey('invalidshortname', $co->get_errors());
     }
 
+    public function test_invalid_visibility() {
+        $this->resetAfterTest(true);
+        $mode = tool_uploadcourse_processor::MODE_CREATE_NEW;
+        $updatemode = tool_uploadcourse_processor::UPDATE_NOTHING;
+        $data = array('shortname' => 'test', 'fullname' => 'New course', 'summary' => 'New', 'category' => 1, 'visible' => 2);
+        $co = new tool_uploadcourse_course($mode, $updatemode, $data);
+        $this->assertFalse($co->prepare());
+        $this->assertArrayHasKey('invalidvisibilitymode', $co->get_errors());
+    }
+
     public function test_create() {
         global $DB;
         $this->resetAfterTest(true);