diff --git a/src/iconsidepane.cpp b/src/iconsidepane.cpp
--- a/src/iconsidepane.cpp
+++ b/src/iconsidepane.cpp
@@ -269,6 +269,7 @@
 
     setVerticalScrollMode(ScrollPerPixel);
     setHorizontalScrollMode(ScrollPerPixel);
+    setFrameShape(QFrame::NoFrame);
 
     mIconSize = Prefs::self()->sidePaneIconSize();
     mShowIcons = Prefs::self()->sidePaneShowIcons();