diff --git a/bundles/org.openhab.core/src/main/java/org/openhab/core/cache/lru/LRUMediaCacheEntry.java b/bundles/org.openhab.core/src/main/java/org/openhab/core/cache/lru/LRUMediaCacheEntry.java
index 8bf60773cc8..04bb68dba93 100644
--- a/bundles/org.openhab.core/src/main/java/org/openhab/core/cache/lru/LRUMediaCacheEntry.java
+++ b/bundles/org.openhab.core/src/main/java/org/openhab/core/cache/lru/LRUMediaCacheEntry.java
@@ -296,7 +296,7 @@ protected byte[] read(int start, int sizeToRead) throws IOException {
             }
         }
         // the cache file is now filled, get bytes from it.
-        long maxToRead = Math.min(currentSize, sizeToRead);
+        long maxToRead = Math.min(fileChannelLocal.size(), sizeToRead);
         ByteBuffer byteBufferFromChannelFile = ByteBuffer.allocate((int) maxToRead);
         int byteReadNumber = fileChannelLocal.read(byteBufferFromChannelFile, Integer.valueOf(start).longValue());
         logger.trace("Read {} bytes from the filechannel", byteReadNumber);