diff --git a/src/Compositor.cpp b/src/Compositor.cpp
index 20ce779b..50cabf7b 100644
--- a/src/Compositor.cpp
+++ b/src/Compositor.cpp
@@ -1188,13 +1188,13 @@ void CCompositor::updateWindowAnimatedDecorationValues(CWindow* pWindow) {
             pWindow->m_fActiveInactiveAlpha = *PFULLSCREENALPHA;
         else {
             if (pWindow == m_pLastWindow)
-                pWindow->m_fActiveInactiveAlpha = pWindow->m_sSpecialRenderData.alpha != -1 ? pWindow->m_sSpecialRenderData.alpha : *PACTIVEALPHA;
+                pWindow->m_fActiveInactiveAlpha = pWindow->m_sSpecialRenderData.alpha * *PACTIVEALPHA;
             else
                 pWindow->m_fActiveInactiveAlpha = pWindow->m_sSpecialRenderData.alphaInactive != -1 ? pWindow->m_sSpecialRenderData.alphaInactive : *PINACTIVEALPHA;
         }
     } else {
         if (pWindow == m_pLastWindow)
-            pWindow->m_fActiveInactiveAlpha = pWindow->m_sSpecialRenderData.alpha != -1 ? pWindow->m_sSpecialRenderData.alpha : *PACTIVEALPHA;
+            pWindow->m_fActiveInactiveAlpha = pWindow->m_sSpecialRenderData.alpha * *PACTIVEALPHA;
         else
             pWindow->m_fActiveInactiveAlpha = pWindow->m_sSpecialRenderData.alphaInactive != -1 ? pWindow->m_sSpecialRenderData.alphaInactive : *PINACTIVEALPHA;
     }