diff --git a/src/completion/katecompletionwidget.cpp b/src/completion/katecompletionwidget.cpp
--- a/src/completion/katecompletionwidget.cpp
+++ b/src/completion/katecompletionwidget.cpp
@@ -103,7 +103,7 @@
     , m_argumentHintTree(new KateArgumentHintTree(this))
     , m_automaticInvocationDelay(100)
     , m_filterInstalled(false)
-    , m_configWidget(new KateCompletionConfig(m_presentationModel, view()))
+    , m_configWidget(nullptr)
     , m_lastInsertionByUser(false)
     , m_inCompletionList(false)
     , m_isSuspended(false)
@@ -1282,6 +1282,10 @@
 {
     abortCompletion();
 
+    if (!m_configWidget) {
+        m_configWidget = new KateCompletionConfig(m_presentationModel, view());
+    }
+
     m_configWidget->exec();
 }