diff --git a/libs/temporal/tempo.cc b/libs/temporal/tempo.cc
index 43bf139e0d..4005023727 100644
--- a/libs/temporal/tempo.cc
+++ b/libs/temporal/tempo.cc
@@ -2051,6 +2051,10 @@ TempoMap::get_grid (TempoMapPoints& ret, superclock_t start, superclock_t end, u
 			p = nxt;
 		}
 
+		/* If we've reached the end of the points list, break and let
+		 * the final phase below fill out the rest of the grid
+		 */
+
 		if (p == _points.end()) {
 			break;
 		}