diff --git a/types/evaporate/index.d.ts b/types/evaporate/index.d.ts
index 1c415769b8..92f02c9c73 100644
--- a/types/evaporate/index.d.ts
+++ b/types/evaporate/index.d.ts
@@ -34,7 +34,7 @@ declare namespace Evaporate {
         s3Acceleration?: boolean;
         mockLocalStorage?: boolean;
         encodeFilename?: boolean;
-        computeContentMd5?: false;
+        computeContentMd5?: boolean;
         allowS3ExistenceOptimization?: boolean;
         onlyRetryForSameFileName?: boolean;
         timeUrl?: string;