diff --git a/src/main/java/org/scijava/io/handle/ReadBufferDataHandle.java b/src/main/java/org/scijava/io/handle/ReadBufferDataHandle.java
@@ -185,7 +185,7 @@ private byte[] readPage(final int pageID, final int slotID) throws IOException {
	 * Calculates the offset in the current page for the given global offset
	 */
	private int globalToLocalOffset(final long off) {
-		return (int) off % pageSize;
	}

	@Override