diff --git a/autotests/integration/effects/scripted_effects_test.cpp b/autotests/integration/effects/scripted_effects_test.cpp
--- a/autotests/integration/effects/scripted_effects_test.cpp
+++ b/autotests/integration/effects/scripted_effects_test.cpp
@@ -291,6 +291,7 @@
         QCOMPARE(animationsForWindow[0].duration, 100);
         QCOMPARE(animationsForWindow[0].to, FPx2(1.4));
         QCOMPARE(animationsForWindow[0].attribute, AnimationEffect::Scale);
+        QCOMPARE(animationsForWindow[0].curve.type(), QEasingCurve::OutQuad);
         QCOMPARE(animationsForWindow[0].keepAtTarget, false);
         timePassed = animationsForWindow[0].time;
         if (animationCount == 2) {
diff --git a/autotests/integration/effects/scripts/animationTest.js b/autotests/integration/effects/scripts/animationTest.js
--- a/autotests/integration/effects/scripts/animationTest.js
+++ b/autotests/integration/effects/scripts/animationTest.js
@@ -1,5 +1,5 @@
 effects.windowAdded.connect(function(w) {
-    w.anim1 = effect.animate(w, Effect.Scale, 100, 1.4, 0.2);
+    w.anim1 = effect.animate(w, Effect.Scale, 100, 1.4, 0.2, 0, QEasingCurve.OutQuad);
     sendTestResponse(typeof(w.anim1) == "number");
 });
 
diff --git a/autotests/integration/effects/scripts/animationTestMulti.js b/autotests/integration/effects/scripts/animationTestMulti.js
--- a/autotests/integration/effects/scripts/animationTestMulti.js
+++ b/autotests/integration/effects/scripts/animationTestMulti.js
@@ -4,11 +4,11 @@
         duration: 100,
         animations: [{
             type: Effect.Scale,
-            curve: Effect.GaussianCurve,
-            to: 1.4
+            to: 1.4,
+            curve: QEasingCurve.OutQuad
         }, {
             type: Effect.Opacity,
-            curve: Effect.GaussianCurve,
+            curve: QEasingCurve.OutQuad,
             to: 0.0
         }]
     });
diff --git a/scripting/scriptedeffect.h b/scripting/scriptedeffect.h
--- a/scripting/scriptedeffect.h
+++ b/scripting/scriptedeffect.h
@@ -95,8 +95,9 @@
     bool unregisterTouchScreenCallback(int edge);
 
 public Q_SLOTS:
-    quint64 animate(KWin::EffectWindow *w, Attribute a, int ms, KWin::FPx2 to, KWin::FPx2 from = KWin::FPx2(), uint metaData = 0, QEasingCurve::Type curve = QEasingCurve::Linear, int delay = 0);
-    quint64 set(KWin::EffectWindow *w, Attribute a, int ms, KWin::FPx2 to, KWin::FPx2 from = KWin::FPx2(), uint metaData = 0, QEasingCurve::Type curve = QEasingCurve::Linear, int delay = 0);
+    //curve should be of type QEasingCurve::type or ScriptedEffect::EasingCurve
+    quint64 animate(KWin::EffectWindow *w, Attribute a, int ms, KWin::FPx2 to, KWin::FPx2 from = KWin::FPx2(), uint metaData = 0, int curve = QEasingCurve::Linear, int delay = 0);
+    quint64 set(KWin::EffectWindow *w, Attribute a, int ms, KWin::FPx2 to, KWin::FPx2 from = KWin::FPx2(), uint metaData = 0, int curve = QEasingCurve::Linear, int delay = 0);
     bool retarget(quint64 animationId, KWin::FPx2 newTarget, int newRemainingTime = -1);
     bool cancel(quint64 animationId) { return AnimationEffect::cancel(animationId); }
     virtual bool borderActivated(ElectricBorder border);
diff --git a/scripting/scriptedeffect.cpp b/scripting/scriptedeffect.cpp
--- a/scripting/scriptedeffect.cpp
+++ b/scripting/scriptedeffect.cpp
@@ -581,22 +581,22 @@
     }
 }
 
-quint64 ScriptedEffect::animate(KWin::EffectWindow* w, KWin::AnimationEffect::Attribute a, int ms, KWin::FPx2 to, KWin::FPx2 from, uint metaData, QEasingCurve::Type curve, int delay)
+quint64 ScriptedEffect::animate(KWin::EffectWindow* w, KWin::AnimationEffect::Attribute a, int ms, KWin::FPx2 to, KWin::FPx2 from, uint metaData, int curve, int delay)
 {
     QEasingCurve qec;
     if (curve < QEasingCurve::Custom)
-        qec.setType(curve);
-    else if (static_cast<int>(curve) == static_cast<int>(GaussianCurve))
+        qec.setType(static_cast<QEasingCurve::Type>(curve));
+    else if (curve == GaussianCurve)
         qec.setCustomType(qecGaussian);
     return AnimationEffect::animate(w, a, metaData, ms, to, qec, delay, from);
 }
 
-quint64 ScriptedEffect::set(KWin::EffectWindow* w, KWin::AnimationEffect::Attribute a, int ms, KWin::FPx2 to, KWin::FPx2 from, uint metaData, QEasingCurve::Type curve, int delay)
+quint64 ScriptedEffect::set(KWin::EffectWindow* w, KWin::AnimationEffect::Attribute a, int ms, KWin::FPx2 to, KWin::FPx2 from, uint metaData, int curve, int delay)
 {
     QEasingCurve qec;
     if (curve < QEasingCurve::Custom)
-        qec.setType(curve);
-    else if (static_cast<int>(curve) == static_cast<int>(GaussianCurve))
+        qec.setType(static_cast<QEasingCurve::Type>(curve));
+    else if (curve == GaussianCurve)
         qec.setCustomType(qecGaussian);
     return AnimationEffect::set(w, a, metaData, ms, to, qec, delay, from);
 }