diff --git a/apps/openmw/mwgui/spellwindow.cpp b/apps/openmw/mwgui/spellwindow.cpp
index aa5fcd88a2..b558025d1c 100644
--- a/apps/openmw/mwgui/spellwindow.cpp
+++ b/apps/openmw/mwgui/spellwindow.cpp
@@ -45,6 +45,7 @@ namespace MWGui
         , NoDrop(drag, mMainWidget)
         , mHeight(0)
         , mWidth(0)
+        , mWindowSize(mMainWidget->getSize())
     {
         mSpellIcons = new SpellIcons();
 
@@ -308,7 +309,11 @@ namespace MWGui
 
     void SpellWindow::onWindowResize(MyGUI::Window* _sender)
     {
-        updateSpells();
+        if (mMainWidget->getSize() != mWindowSize)
+        {
+            mWindowSize = mMainWidget->getSize();
+            updateSpells();
+        }
     }
 
     void SpellWindow::onEnchantedItemSelected(MyGUI::Widget* _sender)
diff --git a/apps/openmw/mwgui/spellwindow.hpp b/apps/openmw/mwgui/spellwindow.hpp
index 2aa4d83d21..a74847b907 100644
--- a/apps/openmw/mwgui/spellwindow.hpp
+++ b/apps/openmw/mwgui/spellwindow.hpp
@@ -29,6 +29,8 @@ namespace MWGui
         int mHeight;
         int mWidth;
 
+        MyGUI::IntSize mWindowSize;
+
         std::string mSpellToDelete;
 
         void addGroup(const std::string& label, const std::string& label2);