diff --git a/code/lib/docs-tools/src/argTypes/docgen/utils/docgenInfo.ts b/code/lib/docs-tools/src/argTypes/docgen/utils/docgenInfo.ts
index ecfda0eafdac..70084ed8ed91 100644
--- a/code/lib/docs-tools/src/argTypes/docgen/utils/docgenInfo.ts
+++ b/code/lib/docs-tools/src/argTypes/docgen/utils/docgenInfo.ts
@@ -16,5 +16,5 @@ export function getDocgenSection(component: Component, section: string): any {
 }
 
 export function getDocgenDescription(component: Component): string {
-  return hasDocgen(component) && str(component.__docgenInfo.description);
+  return hasDocgen(component) ? str(component.__docgenInfo.description) : '';
 }
diff --git a/code/lib/docs-tools/src/argTypes/utils.ts b/code/lib/docs-tools/src/argTypes/utils.ts
index 720ec00d916d..c01818f7c99c 100644
--- a/code/lib/docs-tools/src/argTypes/utils.ts
+++ b/code/lib/docs-tools/src/argTypes/utils.ts
@@ -11,7 +11,7 @@ export function isTooLongForDefaultValueSummary(value: string): boolean {
   return value.length > MAX_DEFAULT_VALUE_SUMMARY_LENGTH;
 }
 
-export function createSummaryValue(summary: string, detail?: string): PropSummaryValue {
+export function createSummaryValue(summary?: string, detail?: string): PropSummaryValue {
   if (summary === detail) {
     return { summary };
   }