diff --git a/src/index.d.ts b/src/index.d.ts
index 0291a4cd..20ecd29e 100644
--- a/src/index.d.ts
+++ b/src/index.d.ts
@@ -91,7 +91,7 @@ interface CButtonToolbar extends HTMLPropsNoClassName {
   className?: className;
   innerRef?: innerRef;
   role?: string;
-  justify?: '' | 'start' | 'end' | 'between' | 'center';
+  justify?: '' | 'start' | 'end' | 'between' | 'center' | 'around';
 }
 
 interface CCallout extends HTMLPropsNoClassName {