diff --git a/src/view/kateviewinternal.h b/src/view/kateviewinternal.h
--- a/src/view/kateviewinternal.h
+++ b/src/view/kateviewinternal.h
@@ -319,6 +319,7 @@
     // line scrollbar + first visible (virtual) line in the current view
     //
     KateScrollBar *m_lineScroll;
+    qreal m_accumulatedScroll = 0.0;
     QWidget *m_dummy;
 
     // These are now cursors to account for word-wrap.
diff --git a/src/view/kateviewinternal.cpp b/src/view/kateviewinternal.cpp
--- a/src/view/kateviewinternal.cpp
+++ b/src/view/kateviewinternal.cpp
@@ -3377,11 +3377,24 @@
 
     // handle vertical scrolling via the scrollbar
     if (e->orientation() == Qt::Vertical) {
-        QWheelEvent copy = *e;
-        QApplication::sendEvent(m_lineScroll, &copy);
-        if (copy.isAccepted()) {
-            e->accept();
+        // compute distance
+        auto sign = m_lineScroll->invertedControls() ? -1 : 1;
+        auto offset = sign * qreal(e->angleDelta().y()) / 120.0;
+        if ( e->modifiers() & Qt::ShiftModifier ) {
+            const auto pageStep = m_lineScroll->pageStep();
+            offset = qBound(-pageStep, int(offset * pageStep), pageStep);
+        } else {
+            offset *= QApplication::wheelScrollLines();
         }
+
+        // handle accumulation
+        m_accumulatedScroll += offset - int(offset);
+        const auto extraAccumulated = int(m_accumulatedScroll);
+        m_accumulatedScroll -= extraAccumulated;
+
+        // do scroll
+        scrollViewLines(int(offset) + extraAccumulated);
+        e->accept();
     }
 
     // handle horizontal scrolling via the scrollbar