diff --git a/sources/qetapp.cpp b/sources/qetapp.cpp
index 2964979e2..efcdea8a0 100644
--- a/sources/qetapp.cpp
+++ b/sources/qetapp.cpp
@@ -1261,6 +1261,7 @@ QFont QETApp::diagramTextsFont(qreal size)
 	QFont diagram_texts_font = QFont(diagram_texts_family);
 	diagram_texts_font.setPointSizeF(diagram_texts_size);
 	diagram_texts_font.setWeight(diagram_texts_item_weight);
+	diagram_texts_font.setStyleHint(QFont::SansSerif);
 	diagram_texts_font.setStyleName(diagram_texts_item_style);
 	if (diagram_texts_size <= 4.0) {
 		diagram_texts_font.setWeight(QFont::Light);
@@ -1294,6 +1295,7 @@ QFont QETApp::diagramTextsItemFont(qreal size)
 	QFont diagram_texts_item_font = QFont(diagram_texts_item_family);
 	diagram_texts_item_font.setPointSizeF(diagram_texts_item_size);
 	diagram_texts_item_font.setWeight(diagram_texts_item_weight);
+	diagram_texts_item_font.setStyleHint(QFont::SansSerif);
 	diagram_texts_item_font.setStyleName(diagram_texts_item_style);
 	if (diagram_texts_item_size <= 4.0) {
 		diagram_texts_item_font.setWeight(QFont::Light);