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-rw-r--r--gtk2_ardour/editor_summary.cc4
1 files changed, 2 insertions, 2 deletions
diff --git a/gtk2_ardour/editor_summary.cc b/gtk2_ardour/editor_summary.cc
index 54b40ed610..8de492ddec 100644
--- a/gtk2_ardour/editor_summary.cc
+++ b/gtk2_ardour/editor_summary.cc
@@ -591,9 +591,9 @@ EditorSummary::on_scroll_event (GdkEventScroll* ev)
/* secondary-wheel == left-right scrolling */
if (ev->direction == GDK_SCROLL_UP) {
- x += amount;
- } else if (ev->direction == GDK_SCROLL_DOWN) {
x -= amount;
+ } else if (ev->direction == GDK_SCROLL_DOWN) {
+ x += amount;
}
} else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {