diff --git a/includes/install.inc b/includes/install.inc
index 6411f8f..2e64cfd 100644
--- a/includes/install.inc
+++ b/includes/install.inc
@@ -199,6 +199,9 @@ function drupal_install_profile_distribution_name() {
   else {
     $profile = drupal_get_profile();
     $info = system_get_info('module', $profile);
+    $info += array(
+      'distribution_name' => 'Unknown',
+    );
     return $info['distribution_name'];
   }
 }
diff --git a/modules/system/system.install b/modules/system/system.install
index 800ea12..b90bcd0 100644
--- a/modules/system/system.install
+++ b/modules/system/system.install
@@ -28,11 +28,20 @@ function system_requirements($phase) {
       'weight' => -10,
     );
 
-    // Display the currently active install profile, if the site
-    // is not running the default install profile.
+    // Display the currently active install profile, if the site is not running
+    // the default install profile.
     $profile = drupal_get_profile();
     if ($profile != 'standard') {
-      $info = system_get_info('module', $profile);
+      $modules = module_list();
+      if (isset($modules[$profile])) {
+        $info = system_get_info('module', $profile);
+      }
+      else {
+        $info = array(
+          'name' => 'Unknown',
+          'version' => 'Unknown',
+        );
+      }
       $requirements['install_profile'] = array(
         'title' => $t('Install profile'),
         'value' => $t('%profile_name (%profile-%version)', array(