diff --git a/kleiner-brauhelfer-core/proxymodelrohstoff.cpp b/kleiner-brauhelfer-core/proxymodelrohstoff.cpp
index d5476e3..db5db0b 100644
--- a/kleiner-brauhelfer-core/proxymodelrohstoff.cpp
+++ b/kleiner-brauhelfer-core/proxymodelrohstoff.cpp
@@ -45,6 +45,7 @@ void ProxyModelRohstoff::setFilter(Filter value)
     if (mFilter != value)
     {
         mFilter = value;
+        emit filterChanged(mFilter);
         invalidateRowsFilter();
     }
 }
@@ -58,6 +59,12 @@ bool ProxyModelRohstoff::filterAcceptsRow(int source_row, const QModelIndex &sou
         if (index.isValid())
             accept = sourceModel()->data(index).toDouble() > 0.0;
     }
+    if (accept && mFilter == Filter::NichtVorhanden)
+    {
+        QModelIndex index = sourceModel()->index(source_row, mAmountColumn, source_parent);
+        if (index.isValid())
+            accept = sourceModel()->data(index).toDouble() <= 0.0;
+    }
     if (accept && mFilter == Filter::InGebrauch)
     {
         QModelIndex index = sourceModel()->index(source_row, mInUsedColumn, source_parent);
diff --git a/kleiner-brauhelfer-core/proxymodelrohstoff.h b/kleiner-brauhelfer-core/proxymodelrohstoff.h
index 5ba5e80..65345be 100644
--- a/kleiner-brauhelfer-core/proxymodelrohstoff.h
+++ b/kleiner-brauhelfer-core/proxymodelrohstoff.h
@@ -8,24 +8,28 @@ class LIB_EXPORT ProxyModelRohstoff : public ProxyModel
 {
     Q_OBJECT
 
-  #if (QT_VERSION >= QT_VERSION_CHECK(5, 8, 0))
-    Q_PROPERTY(Filter filter READ filter WRITE setFilter NOTIFY layoutChanged)
-  #endif
+    Q_PROPERTY(Filter filter READ filter WRITE setFilter NOTIFY filterChanged)
 
 public:
     enum Filter
     {
         Alle,
         Vorhanden,
-        InGebrauch
+        InGebrauch,
+        NichtVorhanden
     };
     Q_ENUM(Filter)
 
 public:
     ProxyModelRohstoff(QObject* parent = nullptr);
     Filter filter() const;
+
+public slots:
     void setFilter(Filter value);
 
+signals:
+    void filterChanged(Filter value);
+
 protected:
     bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const Q_DECL_OVERRIDE;
 
diff --git a/kleiner-brauhelfer-core/proxymodelsud.h b/kleiner-brauhelfer-core/proxymodelsud.h
index b5c368f..c6401c4 100644
--- a/kleiner-brauhelfer-core/proxymodelsud.h
+++ b/kleiner-brauhelfer-core/proxymodelsud.h
@@ -10,13 +10,11 @@ class LIB_EXPORT ProxyModelSud : public ProxyModel
 {
     Q_OBJECT
 
-  #if (QT_VERSION >= QT_VERSION_CHECK(5, 8, 0))
     Q_PROPERTY(bool filterMerkliste READ filterMerkliste WRITE setFilterMerkliste NOTIFY layoutChanged)
     Q_PROPERTY(FilterStatus filterStatus READ filterStatus WRITE setFilterStatus NOTIFY layoutChanged)
     Q_PROPERTY(QDateTime minDate READ filterMinimumDate WRITE setFilterMinimumDate NOTIFY layoutChanged)
     Q_PROPERTY(QDateTime maxDate READ filterMaximumDate WRITE setFilterMaximumDate NOTIFY layoutChanged)
     Q_PROPERTY(QString filterText READ filterText WRITE setFilterText NOTIFY layoutChanged)
-  #endif
 
 public:
     enum FilterStatusPart