diff --git a/addons/symbolviewer/plugin_katesymbolviewer.cpp b/addons/symbolviewer/plugin_katesymbolviewer.cpp
--- a/addons/symbolviewer/plugin_katesymbolviewer.cpp
+++ b/addons/symbolviewer/plugin_katesymbolviewer.cpp
@@ -215,7 +215,7 @@
 void KatePluginSymbolViewerView::slotDocEdited()
 {
   m_currItemTimer.stop(); // Avoid unneeded update
-  m_updateTimer.start(500);
+  m_updateTimer.start(2000);
 }
 
 void KatePluginSymbolViewerView::cursorPositionChanged()