diff --git a/libs/temporal/tempo.cc b/libs/temporal/tempo.cc
index 65a1316eeb..8d428b221c 100644
--- a/libs/temporal/tempo.cc
+++ b/libs/temporal/tempo.cc
@@ -2184,7 +2184,7 @@ TempoMap::get_grid (TempoMapPoints& ret, superclock_t start, superclock_t end, u
 			 */
 
 			if (bar_mod != 0) {
-				if (bbt.is_bar() && (bar_mod == 1 || ((bbt.bars % bar_mod == 0)))) {
+				if (bbt.is_bar() && (bar_mod == 1 || ((bbt.bars % bar_mod == 1)))) {
 					ret.push_back (TempoMapPoint (*this, metric, start, beats, bbt));
 					DEBUG_TRACE (DEBUG::Grid, string_compose ("GendA %1\t       %2\n", metric, ret.back()));
 				}