diff --git a/tds/src/integrationTests/java/thredds/server/fileserver/TestPartialContent.java b/tds/src/integrationTests/java/thredds/server/fileserver/TestPartialContent.java
index 8608d7761c..c22383d2b9 100644
--- a/tds/src/integrationTests/java/thredds/server/fileserver/TestPartialContent.java
+++ b/tds/src/integrationTests/java/thredds/server/fileserver/TestPartialContent.java
@@ -56,7 +56,7 @@ private void checkPartialContent(String path, long maxSize, String contentType)
         new int[] {HttpServletResponse.SC_PARTIAL_CONTENT}, contentType, byteRange);
     assertThat(content).isNotNull();
 
-    final long expectedLength = Math.min(byteRange[1] - byteRange[0] + 1, maxSize);
+    final long expectedLength = Math.min(byteRange[1] - byteRange[0] + 1, maxSize - byteRange[0]);
     assertThat(content.length).isEqualTo(expectedLength);
   }
 }