diff --git a/app/dialog/speedduration/speeddurationdialog.cpp b/app/dialog/speedduration/speeddurationdialog.cpp
index 671bcfc25..580da35d8 100644
--- a/app/dialog/speedduration/speeddurationdialog.cpp
+++ b/app/dialog/speedduration/speeddurationdialog.cpp
@@ -145,17 +145,11 @@ SpeedDurationDialog::SpeedDurationDialog(const QVector<ClipBlock *> &clips, cons
 
 void SpeedDurationDialog::accept()
 {
-  // We haven't implemented rippling yet, so warn the user
-  if (ripple_box_->isChecked()) {
-    // FIXME: Stub
-    if (QMessageBox::information(this, QString(), tr("Rippling is a stub and will not do anything. Do you wish to continue?"), QMessageBox::Yes | QMessageBox::No) == QMessageBox::No) {
-      return;
-    }
-  }
-
   MultiUndoCommand *command = new MultiUndoCommand();
 
   // Set duration values
+  TimelineRippleDeleteGapsAtRegionsCommand::RangeList ripple_ranges;
+
   foreach (ClipBlock *c, clips_) {
     rational proposed_length = c->length();
 
@@ -179,10 +173,15 @@ void SpeedDurationDialog::accept()
 
       if (proposed_length != c->length()) {
         command->add_child(new BlockTrimCommand(c->track(), c, proposed_length, Timeline::kTrimOut));
+        ripple_ranges.append({c->track(), TimeRange(c->in() + proposed_length, c->out())});
       }
     }
   }
 
+  if (ripple_box_->isChecked()) {
+    command->add_child(new TimelineRippleDeleteGapsAtRegionsCommand(clips_.first()->track()->sequence(), ripple_ranges));
+  }
+
   // Set speed values
   if (speed_slider_->IsTristate()) {
     if (link_box_->isChecked() && !dur_slider_->IsTristate()) {
diff --git a/app/widget/timelinewidget/timelinewidget.cpp b/app/widget/timelinewidget/timelinewidget.cpp
index 193649988..04ec0876e 100644
--- a/app/widget/timelinewidget/timelinewidget.cpp
+++ b/app/widget/timelinewidget/timelinewidget.cpp
@@ -487,7 +487,7 @@ void TimelineWidget::DeleteSelected(bool ripple)
   TimelineRippleDeleteGapsAtRegionsCommand *ripple_command = nullptr;
   rational new_playhead = RATIONAL_MAX;
   if (ripple) {
-    QVector<QPair<Track*, TimeRange> > range_list;
+    TimelineRippleDeleteGapsAtRegionsCommand::RangeList range_list;
 
     foreach (Block* b, blocks_to_delete) {
       range_list.append({b->track(), b->range()});
diff --git a/app/widget/timelinewidget/undo/timelineundoripple.h b/app/widget/timelinewidget/undo/timelineundoripple.h
index b5cd4b8b5..6a8c1191a 100644
--- a/app/widget/timelinewidget/undo/timelineundoripple.h
+++ b/app/widget/timelinewidget/undo/timelineundoripple.h
@@ -207,7 +207,9 @@ private:
 class TimelineRippleDeleteGapsAtRegionsCommand : public UndoCommand
 {
 public:
-  TimelineRippleDeleteGapsAtRegionsCommand(Sequence* vo, const QVector<QPair<Track*, TimeRange> >& regions) :
+  using RangeList = QVector<QPair<Track*, TimeRange> >;
+
+  TimelineRippleDeleteGapsAtRegionsCommand(Sequence* vo, const RangeList& regions) :
     timeline_(vo),
     regions_(regions)
   {
@@ -237,7 +239,7 @@ protected:
 
 private:
   Sequence* timeline_;
-  QVector<QPair<Track*, TimeRange> > regions_;
+  RangeList regions_;
 
   QVector<UndoCommand*> commands_;