diff --git a/libs/ardour/disk_reader.cc b/libs/ardour/disk_reader.cc
index f1ac6e6506..3acd546c07 100644
--- a/libs/ardour/disk_reader.cc
+++ b/libs/ardour/disk_reader.cc
@@ -762,8 +762,8 @@ DiskReader::seek (samplepos_t sample, bool complete_refill)
 		return 0;
 	}
 
-	if ((!_last_read_reversed || (_last_read_reversed != read_reversed)) ||
-	    (!_last_read_loop || (_last_read_loop != read_loop))) {
+	if ((!_last_read_reversed || (_last_read_reversed == read_reversed)) ||
+	    (!_last_read_loop || (_last_read_loop == read_loop))) {
 
 		/* We do these things only if we're still reading in the same
 		 * direction we did last time.