diff --git a/src/Gui/QuantitySpinBox.cpp b/src/Gui/QuantitySpinBox.cpp
index 5708d4d0dd..35fcd8aece 100644
--- a/src/Gui/QuantitySpinBox.cpp
+++ b/src/Gui/QuantitySpinBox.cpp
@@ -513,7 +513,7 @@ void Gui::QuantitySpinBox::keyPressEvent(QKeyEvent *event)
 {
     if (event->text() == QString::fromUtf8("=") && isBound())
         openFormulaDialog();
-    else if (!hasExpression())
+    else
         QAbstractSpinBox::keyPressEvent(event);
 }
 
diff --git a/src/Gui/SpinBox.cpp b/src/Gui/SpinBox.cpp
index c0d6114c29..b5a5d2731d 100644
--- a/src/Gui/SpinBox.cpp
+++ b/src/Gui/SpinBox.cpp
@@ -405,10 +405,8 @@ void UIntSpinBox::keyPressEvent(QKeyEvent *event)
 {
     if (event->text() == QString::fromUtf8("=") && isBound())
         openFormulaDialog();
-    else {
-        if (!hasExpression())
-            QAbstractSpinBox::keyPressEvent(event);
-    }
+    else
+        QAbstractSpinBox::keyPressEvent(event);
 }
 
 
@@ -584,10 +582,8 @@ void IntSpinBox::keyPressEvent(QKeyEvent *event)
 {
     if (event->text() == QString::fromUtf8("=") && isBound())
         openFormulaDialog();
-    else {
-        if (!hasExpression())
-            QAbstractSpinBox::keyPressEvent(event);
-    }
+    else
+        QAbstractSpinBox::keyPressEvent(event);
 }
 
 
@@ -762,10 +758,8 @@ void DoubleSpinBox::keyPressEvent(QKeyEvent *event)
 {
     if (event->text() == QString::fromUtf8("=") && isBound())
         openFormulaDialog();
-    else {
-        if (!hasExpression())
-            QAbstractSpinBox::keyPressEvent(event);
-    }
+    else
+        QAbstractSpinBox::keyPressEvent(event);
 }
 
 #include "moc_SpinBox.cpp"