diff --git a/src/completionproxymodel.cpp b/src/completionproxymodel.cpp
index fe57f06fe..2681a7a87 100644
--- a/src/completionproxymodel.cpp
+++ b/src/completionproxymodel.cpp
@@ -12,10 +12,13 @@ bool CompletionProxyModel::filterAcceptsRow(int sourceRow, const QModelIndex &so
     if (m_filterText.isEmpty()) {
         return false;
     }
-    return (sourceModel()->data(sourceModel()->index(sourceRow, 0), filterRole()).toString().startsWith(m_filterText)
+    return (sourceModel()->data(sourceModel()->index(sourceRow, 0), filterRole()).toString().startsWith(m_filterText, Qt::CaseInsensitive)
             && !m_fullText.startsWith(sourceModel()->data(sourceModel()->index(sourceRow, 0), filterRole()).toString()))
         || (m_secondaryFilterRole != -1
-            && sourceModel()->data(sourceModel()->index(sourceRow, 0), secondaryFilterRole()).toString().startsWith(m_filterText.midRef(1)));
+            && sourceModel()
+                   ->data(sourceModel()->index(sourceRow, 0), secondaryFilterRole())
+                   .toString()
+                   .startsWith(m_filterText.midRef(1), Qt::CaseInsensitive));
 }
 
 int CompletionProxyModel::secondaryFilterRole() const