diff --git a/src/corelib/tools/qeasingcurve.cpp b/src/corelib/tools/qeasingcurve.cpp
index 1734b03..1fb2c13 100644
--- a/src/corelib/tools/qeasingcurve.cpp
+++ b/src/corelib/tools/qeasingcurve.cpp
@@ -647,9 +647,12 @@ bool QEasingCurve::operator==(const QEasingCurve &other) const
 {
     bool res = d_ptr->func == other.d_ptr->func
             && d_ptr->type == other.d_ptr->type;
-    if (res && d_ptr->config && other.d_ptr->config) {
+    if (res) {
         // catch the config content
-        res = d_ptr->config->operator==(*(other.d_ptr->config));
+        if (d_ptr->config && other.d_ptr->config)
+            res = d_ptr->config->operator==(*(other.d_ptr->config));
+        else if (d_ptr->config != other.d_ptr->config)
+            res = false;
     }
     return res;
 }
diff --git a/tests/auto/qeasingcurve/tst_qeasingcurve.cpp b/tests/auto/qeasingcurve/tst_qeasingcurve.cpp
index 124f900..de59c78 100644
--- a/tests/auto/qeasingcurve/tst_qeasingcurve.cpp
+++ b/tests/auto/qeasingcurve/tst_qeasingcurve.cpp
@@ -505,6 +505,11 @@ void tst_QEasingCurve::operators()
     curve2.setType(QEasingCurve::InBack);
     QCOMPARE(curve.overshoot(), curve2.overshoot());
     QVERIFY(curve2 == curve);
+
+    QEasingCurve curve3;
+    QEasingCurve curve4;
+    curve4.setAmplitude(.3);
+    QVERIFY(curve3 != curve4);
 }
 
 class tst_QEasingProperties : public QObject