diff --git a/src/app/qgsmaptooltrimextendfeature.cpp b/src/app/qgsmaptooltrimextendfeature.cpp
index a372773441a4..50e36f2e8236 100644
--- a/src/app/qgsmaptooltrimextendfeature.cpp
+++ b/src/app/qgsmaptooltrimextendfeature.cpp
@@ -265,8 +265,8 @@ void QgsMapToolTrimExtendFeature::canvasReleaseEvent( QgsMapMouseEvent *e )
           emit messageEmitted( tr( "Couldn't trim or extend the feature." ) );
         }
 
-        // If Ctrl or Shift is pressed, keep the tool active with its reference feature
-        if ( !( e->modifiers() & ( Qt::ControlModifier | Qt::ShiftModifier ) ) )
+        // If Shift is pressed, keep the tool active with its reference feature
+        if ( !( e->modifiers() & Qt::ShiftModifier ) )
           deactivate();
         break;
     }
diff --git a/src/ui/qgisapp.ui b/src/ui/qgisapp.ui
index d79d92e86bcc..a77ab3c90bf4 100644
--- a/src/ui/qgisapp.ui
+++ b/src/ui/qgisapp.ui
@@ -1181,7 +1181,7 @@ Shift+O to turn segments into straight or curve lines.</string>
    <property name="toolTip">
     <string>Trim/Extend Feature
 - Click to set the reference segment
-- Click on another segment to trim it or extend it to the reference segment (Use Shift or Ctrl to keep the reference segment active)
+- Click on another segment to trim it or extend it to the reference segment (Use Shift to keep the reference segment active)
 Note : Segment snapping must be enabled in the snapping Toolbar</string>
    </property>
   </action>