diff --git a/index.d.ts b/index.d.ts
index ed8a62de..f50cf669 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -324,7 +324,7 @@ declare module 'react-native-health' {
 
     getMindfulSession(
       options: HealthInputOptions,
-      callback: (err: string, results: HealthValue) => void,
+      callback: (err: string, results: Array<HealthValue>) => void,
     ): void
 
     saveMindfulSession(