diff --git a/api/src/main/java/io/minio/PutObjectArgs.java b/api/src/main/java/io/minio/PutObjectArgs.java
index db41ddbba..0db43e844 100644
--- a/api/src/main/java/io/minio/PutObjectArgs.java
+++ b/api/src/main/java/io/minio/PutObjectArgs.java
@@ -98,7 +98,7 @@ private long[] partInfo(long objectSize, long partSize) {
         }
 
         long partCount = (long) Math.ceil((double) objectSize / partSize);
-        return new long[] {partSize, partCount};
+        return new long[] {partSize, partCount == 0 ? 1 : partCount};
       }
 
       double pSize = Math.ceil((double) objectSize / MAX_MULTIPART_COUNT);