2 files changed, 2 insertions, 2 deletions
diff --git a/src/data/graphelementdata.cpp b/src/data/graphelementdata.cpp
index 63c8cea..01736b8 100644
--- a/src/data/graphelementdata.cpp
+++ b/src/data/graphelementdata.cpp
@@ -131,7 +131,7 @@ int GraphElementData::rowCount(const QModelIndex &parent) const
     }
 }
 
-int GraphElementData::columnCount(const QModelIndex &parent) const
+int GraphElementData::columnCount(const QModelIndex &) const
 {
     return 2;
 }
diff --git a/src/data/graphelementdata.h b/src/data/graphelementdata.h
index 319edf7..740d4dc 100644
--- a/src/data/graphelementdata.h
+++ b/src/data/graphelementdata.h
@@ -34,7 +34,7 @@ public:
     QModelIndex parent(const QModelIndex &index) const Q_DECL_OVERRIDE;
 
     int rowCount(const QModelIndex &parent = QModelIndex()) const Q_DECL_OVERRIDE;
-    int columnCount(const QModelIndex &parent = QModelIndex()) const Q_DECL_OVERRIDE;
+    int columnCount(const QModelIndex &) const Q_DECL_OVERRIDE;
 
     Qt::ItemFlags flags(const QModelIndex &index) const Q_DECL_OVERRIDE;