diff --git a/3.0/modules/minislideshow/helpers/minislideshow_event.php b/3.0/modules/minislideshow/helpers/minislideshow_event.php
index 6d88569a..a4f76361 100644
--- a/3.0/modules/minislideshow/helpers/minislideshow_event.php
+++ b/3.0/modules/minislideshow/helpers/minislideshow_event.php
@@ -41,6 +41,12 @@ class minislideshow_event_Core {
     }
   }
 
+  static function pre_deactivate($data) {
+    if ($data->module == "rss") {
+      $data->messages["warn"][] = t("The MiniSlide Show module requires the RSS module.");
+    }
+  }
+
   static function album_menu($menu, $theme) {
     // Add an option to access the slideshow from the album view.
     $menu
diff --git a/3.0/modules/minislideshow/helpers/minislideshow_installer.php b/3.0/modules/minislideshow/helpers/minislideshow_installer.php
index da071844..3edcf98a 100644
--- a/3.0/modules/minislideshow/helpers/minislideshow_installer.php
+++ b/3.0/modules/minislideshow/helpers/minislideshow_installer.php
@@ -22,4 +22,12 @@ class minislideshow_installer {
   static function deactivate() {
     site_status::clear("minislideshow_needs_rss");
   }
+
+  static function can_activate() {
+    $messages = array();
+    if (!module::is_active("rss")) {
+      $messages["warn"][] = t("The MiniSlide Show module requires the RSS module.");
+    }
+    return $messages;
+  }
 }
diff --git a/3.1/modules/minislideshow/helpers/minislideshow_event.php b/3.1/modules/minislideshow/helpers/minislideshow_event.php
index 6d88569a..a4f76361 100644
--- a/3.1/modules/minislideshow/helpers/minislideshow_event.php
+++ b/3.1/modules/minislideshow/helpers/minislideshow_event.php
@@ -41,6 +41,12 @@ class minislideshow_event_Core {
     }
   }
 
+  static function pre_deactivate($data) {
+    if ($data->module == "rss") {
+      $data->messages["warn"][] = t("The MiniSlide Show module requires the RSS module.");
+    }
+  }
+
   static function album_menu($menu, $theme) {
     // Add an option to access the slideshow from the album view.
     $menu
diff --git a/3.1/modules/minislideshow/helpers/minislideshow_installer.php b/3.1/modules/minislideshow/helpers/minislideshow_installer.php
index da071844..3edcf98a 100644
--- a/3.1/modules/minislideshow/helpers/minislideshow_installer.php
+++ b/3.1/modules/minislideshow/helpers/minislideshow_installer.php
@@ -22,4 +22,12 @@ class minislideshow_installer {
   static function deactivate() {
     site_status::clear("minislideshow_needs_rss");
   }
+
+  static function can_activate() {
+    $messages = array();
+    if (!module::is_active("rss")) {
+      $messages["warn"][] = t("The MiniSlide Show module requires the RSS module.");
+    }
+    return $messages;
+  }
 }