diff --git a/src/map/mapsforge/style.cpp b/src/map/mapsforge/style.cpp
index f3803b73..156c153e 100644
--- a/src/map/mapsforge/style.cpp
+++ b/src/map/mapsforge/style.cpp
@@ -116,13 +116,15 @@ QSet<QString> Style::Menu::cats() const
 }
 
 Style::Rule::Filter::Filter(const MapData &data, const QList<QByteArray> &keys,
-  const QList<QByteArray> &vals) : _neg(false)
+  const QList<QByteArray> &vals) : _neg(false), _excl(false)
 {
 	_keys = keyList(data, keys);
 
 	QList<QByteArray> vc(vals);
 	if (vc.removeAll("~"))
 		_neg = true;
+	if (vc.removeAll("-"))
+		_excl = true;
 	_vals = valList(vc);
 }
 
diff --git a/src/map/mapsforge/style.h b/src/map/mapsforge/style.h
index a9367dcd..44ff15e0 100644
--- a/src/map/mapsforge/style.h
+++ b/src/map/mapsforge/style.h
@@ -38,7 +38,7 @@ public:
 
 		class Filter {
 		public:
-			Filter() : _neg(false) {}
+			Filter() : _neg(false), _excl(false) {}
 			Filter(const MapData &data, const QList<QByteArray> &keys,
 			  const QList<QByteArray> &vals);
 
@@ -47,14 +47,15 @@ public:
 				if (_neg) {
 					if (!keyMatches(tags))
 						return true;
-					return valueMatches(tags);
+					return valueMatches(tags) ^ _excl;
 				} else
-					return (keyMatches(tags) && valueMatches(tags));
+					return (keyMatches(tags) && (valueMatches(tags) ^ _excl));
 			}
 
 			bool isTautology() const
 			{
-				return (!_neg && _keys.contains(0u) && _vals.contains(QByteArray()));
+				return (!_neg && !_excl && _keys.contains(0u)
+				  && _vals.contains(QByteArray()));
 			}
 
 		private:
@@ -86,7 +87,7 @@ public:
 
 			QList<unsigned> _keys;
 			QList<QByteArray> _vals;
-			bool _neg;
+			bool _neg, _excl;
 		};
 
 		void setType(Type type)