diff --git a/clients/aurorae/src/aurorae.cpp b/clients/aurorae/src/aurorae.cpp
index 1f043a9499..6e9f4554cd 100644
--- a/clients/aurorae/src/aurorae.cpp
+++ b/clients/aurorae/src/aurorae.cpp
@@ -349,14 +349,7 @@ void Decoration::init()
         if (m_padding) {
             KDecoration2::DecorationShadow *s = new KDecoration2::DecorationShadow(this);
             s->setPadding(*m_padding);
-            s->setTopLeft(QSize(m_padding->left(), m_padding->top()));
-            s->setTopRight(QSize(m_padding->right(), m_padding->top()));
-            s->setBottomLeft(QSize(m_padding->left(), m_padding->bottom()));
-            s->setBottomRight(QSize(m_padding->right(), m_padding->bottom()));
-            s->setLeft(QSize(m_padding->left(), 1));
-            s->setRight(QSize(m_padding->right(), 1));
-            s->setTop(QSize(1, m_padding->top()));
-            s->setBottom(QSize(1, m_padding->bottom()));
+            s->setInnerShadowRect(QRect(m_padding->left(), m_padding->top(), 1, 1));
             setShadow(s);
         }
     }
@@ -404,14 +397,10 @@ void Decoration::paint(QPainter *painter, const QRegion &repaintRegion)
         KDecoration2::DecorationShadow *s = new KDecoration2::DecorationShadow(this);
         s->setShadow(m_buffer);
         s->setPadding(*m_padding);
-        s->setTopLeft(QSize(m_padding->left(), m_padding->top()));
-        s->setTopRight(QSize(m_padding->right(), m_padding->top()));
-        s->setBottomLeft(QSize(m_padding->left(), m_padding->bottom()));
-        s->setBottomRight(QSize(m_padding->right(), m_padding->bottom()));
-        s->setLeft(QSize(m_padding->left(), m_buffer.height() - m_padding->top() - m_padding->bottom()));
-        s->setRight(QSize(m_padding->right(), m_buffer.height() - m_padding->top() - m_padding->bottom()));
-        s->setTop(QSize(m_buffer.width() - m_padding->left() - m_padding->right(), m_padding->top()));
-        s->setBottom(QSize(m_buffer.width() - m_padding->left() - m_padding->right(), m_padding->bottom()));
+        s->setInnerShadowRect(QRect(m_padding->left(),
+                                    m_padding->top(),
+                                    m_buffer.width() - m_padding->left() - m_padding->right(),
+                                    m_buffer.height() - m_padding->top() - m_padding->bottom()));
         auto oldShadow = shadow();
         setShadow(s);
         if (oldShadow) {
diff --git a/shadow.cpp b/shadow.cpp
index 55ddcae6fc..98a8ac0f68 100644
--- a/shadow.cpp
+++ b/shadow.cpp
@@ -156,14 +156,7 @@ bool Shadow::init(KDecoration2::Decoration *decoration)
 {
     if (m_decorationShadow) {
         // disconnect previous connections
-        disconnect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::topLeftChanged,       m_topLevel, &Toplevel::getShadow);
-        disconnect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::topChanged,           m_topLevel, &Toplevel::getShadow);
-        disconnect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::topRightChanged,      m_topLevel, &Toplevel::getShadow);
-        disconnect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::rightChanged,         m_topLevel, &Toplevel::getShadow);
-        disconnect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::bottomRightChanged,   m_topLevel, &Toplevel::getShadow);
-        disconnect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::bottomChanged,        m_topLevel, &Toplevel::getShadow);
-        disconnect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::bottomLeftChanged,    m_topLevel, &Toplevel::getShadow);
-        disconnect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::leftChanged,          m_topLevel, &Toplevel::getShadow);
+        disconnect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::innerShadowRectChanged, m_topLevel, &Toplevel::getShadow);
         disconnect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::shadowChanged,        m_topLevel, &Toplevel::getShadow);
         disconnect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::paddingChanged,       m_topLevel, &Toplevel::getShadow);
     }
@@ -172,14 +165,7 @@ bool Shadow::init(KDecoration2::Decoration *decoration)
         return false;
     }
     // setup connections - all just mapped to recreate
-    connect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::topLeftChanged,       m_topLevel, &Toplevel::getShadow);
-    connect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::topChanged,           m_topLevel, &Toplevel::getShadow);
-    connect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::topRightChanged,      m_topLevel, &Toplevel::getShadow);
-    connect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::rightChanged,         m_topLevel, &Toplevel::getShadow);
-    connect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::bottomRightChanged,   m_topLevel, &Toplevel::getShadow);
-    connect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::bottomChanged,        m_topLevel, &Toplevel::getShadow);
-    connect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::bottomLeftChanged,    m_topLevel, &Toplevel::getShadow);
-    connect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::leftChanged,          m_topLevel, &Toplevel::getShadow);
+    connect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::innerShadowRectChanged, m_topLevel, &Toplevel::getShadow);
     connect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::shadowChanged,        m_topLevel, &Toplevel::getShadow);
     connect(m_decorationShadow.data(), &KDecoration2::DecorationShadow::paddingChanged,       m_topLevel, &Toplevel::getShadow);