diff --git a/src/spellcheck/ontheflycheck.h b/src/spellcheck/ontheflycheck.h
--- a/src/spellcheck/ontheflycheck.h
+++ b/src/spellcheck/ontheflycheck.h
@@ -68,6 +68,8 @@
     void updateConfig();
     void refreshSpellCheck(const KTextEditor::Range &range = KTextEditor::Range::invalid());
 
+    void slotDocumentReloaded(const KTextEditor::Document *view = nullptr);
+
     void updateInstalledMovingRanges(KTextEditor::ViewPrivate *view);
 
 protected:
diff --git a/src/spellcheck/ontheflycheck.cpp b/src/spellcheck/ontheflycheck.cpp
--- a/src/spellcheck/ontheflycheck.cpp
+++ b/src/spellcheck/ontheflycheck.cpp
@@ -72,6 +72,9 @@
     connect(&document->buffer(), SIGNAL(respellCheckBlock(int,int)),
             this, SLOT(handleRespellCheckBlock(int,int)));
 
+    connect(document, &KTextEditor::Document::reloaded,
+            this, &KateOnTheFlyChecker::slotDocumentReloaded);
+
     // load the settings for the speller
     updateConfig();
 
@@ -689,6 +692,15 @@
     }
 }
 
+void KateOnTheFlyChecker::slotDocumentReloaded(const KTextEditor::Document *view)
+{
+    if (!view) {
+        return;
+    }
+
+    refreshSpellCheck();
+}
+
 void KateOnTheFlyChecker::addView(KTextEditor::Document *document, KTextEditor::View *view)
 {
     Q_ASSERT(document == m_document);