diff --git a/backends/playback/zsm/zsm_backend.cpp b/backends/playback/zsm/zsm_backend.cpp
index a0ac843..c7e10bd 100644
--- a/backends/playback/zsm/zsm_backend.cpp
+++ b/backends/playback/zsm/zsm_backend.cpp
@@ -180,7 +180,7 @@ void ZsmBackend::tick(bool step) {
                                     loop_rem <<= 8;
                                     loop_rem |= bytes[7];
                                     loop = loop_rem;
-                                    islooped = bytes[6];
+                                    islooped = bytes[6] & 0x80;
                                     remain = bytes[5];
                                     remain <<= 8;
                                     remain |= bytes[4];