diff --git a/src/lib/tools/toolbutton.cpp b/src/lib/tools/toolbutton.cpp
index e799e894a..009e7d3ec 100644
--- a/src/lib/tools/toolbutton.cpp
+++ b/src/lib/tools/toolbutton.cpp
@@ -55,6 +55,8 @@ void ToolButton::setMultiIcon(const QPixmap &icon)
 
     m_options |= MultiIconOption;
     setFixedSize(m_normalIcon.size());
+
+    update();
 }
 
 QString ToolButton::themeIcon() const