diff --git a/packages/mermaid/src/diagrams/git/gitGraphRenderer.js b/packages/mermaid/src/diagrams/git/gitGraphRenderer.js
index 0b52b0360..71698a500 100644
--- a/packages/mermaid/src/diagrams/git/gitGraphRenderer.js
+++ b/packages/mermaid/src/diagrams/git/gitGraphRenderer.js
@@ -495,7 +495,8 @@ const drawBranches = (svg, branches) => {
  */
 export const draw = function (txt, id, ver, diagObj) {
   clear();
-  const gitGraphConfig = getConfig().gitGraph;
+  const conf = getConfig();
+  const gitGraphConfig = conf.gitGraph;
   // try {
   log.debug('in gitgraph renderer', txt + '\n', 'id:', id, ver);
 
@@ -522,7 +523,12 @@ export const draw = function (txt, id, ver, diagObj) {
   drawCommits(diagram, allCommitsDict, true);
 
   // Setup the view box and size of the svg element
-  setupGraphViewbox(undefined, diagram, gitGraphConfig.diagramPadding, gitGraphConfig.useMaxWidth);
+  setupGraphViewbox(
+    undefined,
+    diagram,
+    gitGraphConfig.diagramPadding,
+    gitGraphConfig.useMaxWidth ?? conf.useMaxWidth
+  );
 };
 
 export default {