diff --git a/src/data/extra/web/js/graphpreviewer.js b/src/data/extra/web/js/graphpreviewer.js
index d010a6cb..8c168e8b 100644
--- a/src/data/extra/web/js/graphpreviewer.js
+++ b/src/data/extra/web/js/graphpreviewer.js
@@ -68,7 +68,7 @@ class GraphPreviewer {
             };
             this.vnotex.getWorker('plantuml').renderText(p_text, func(this, p_id, p_timeStamp));
             return;
-        } else if (p_lang === 'dot') {
+        } else if (p_lang === 'dot' || p_lang === 'graphviz') {
             let func = function(p_previewer, p_id, p_timeStamp) {
                 let previewer = p_previewer;
                 let id = p_id;
diff --git a/src/data/extra/web/js/graphviz.js b/src/data/extra/web/js/graphviz.js
index 6728afe0..062211ff 100644
--- a/src/data/extra/web/js/graphviz.js
+++ b/src/data/extra/web/js/graphviz.js
@@ -13,7 +13,7 @@ class Graphviz extends GraphRenderer {
 
         this.format = 'svg';
 
-        this.langs = ['dot'];
+        this.langs = ['dot', 'graphviz'];
 
         this.useWeb = true;
 
diff --git a/src/widgets/editors/previewhelper.cpp b/src/widgets/editors/previewhelper.cpp
index 9428724e..dc061d88 100644
--- a/src/widgets/editors/previewhelper.cpp
+++ b/src/widgets/editors/previewhelper.cpp
@@ -211,7 +211,7 @@ bool PreviewHelper::checkPreviewSourceLang(SourceFlag p_flag, const QString &p_l
         return p_lang == QStringLiteral("puml") || p_lang == QStringLiteral("plantuml");
 
     case SourceFlag::Graphviz:
-        return p_lang == QStringLiteral("dot");
+        return p_lang == QStringLiteral("dot") || p_lang == QStringLiteral("graphviz");
 
     case SourceFlag::Math:
         return p_lang == QStringLiteral("mathjax");