diff --git a/.changeset/few-files-compete.md b/.changeset/few-files-compete.md
new file mode 100644
index 0000000000..fcc83a91a0
--- /dev/null
+++ b/.changeset/few-files-compete.md
@@ -0,0 +1,5 @@
+---
+'gitbook': patch
+---
+
+OpenAPI operation title fallback in sections
diff --git a/packages/gitbook/src/lib/document-sections.ts b/packages/gitbook/src/lib/document-sections.ts
index de2fdaab2c..3f8dbb13a5 100644
--- a/packages/gitbook/src/lib/document-sections.ts
+++ b/packages/gitbook/src/lib/document-sections.ts
@@ -46,7 +46,7 @@ export async function getDocumentSections(
                 sections.push({
                     id: block.meta.id,
                     tag: operation.method.toUpperCase(),
-                    title: operation.operation.summary ?? operation.path,
+                    title: operation.operation.summary || operation.path,
                     depth: 1,
                     deprecated: operation.operation.deprecated,
                 });