diff --git a/lib/jkqtcommon/jkqtpdrawingtools.cpp b/lib/jkqtcommon/jkqtpdrawingtools.cpp
index eb92f0a3c9..091beca2a3 100644
--- a/lib/jkqtcommon/jkqtpdrawingtools.cpp
+++ b/lib/jkqtcommon/jkqtpdrawingtools.cpp
@@ -556,12 +556,12 @@ QVector<JKQTPCustomGraphSymbolFunctor> JKQTPlotterDrawingTools::JKQTPCustomGraph
 
 JKQTPGraphSymbols JKQTPRegisterCustomGraphSymbol(JKQTPCustomGraphSymbolFunctor&& f)
 {
-    JKQTPlotterDrawingTools::JKQTPCustomGraphSymbolStore.emplace_back(std::move(f));
+    JKQTPlotterDrawingTools::JKQTPCustomGraphSymbolStore.push_back(std::move(f));
     return JKQTPFirstCustomSymbol+(JKQTPlotterDrawingTools::JKQTPCustomGraphSymbolStore.size()-1);
 }
 
 JKQTPGraphSymbols JKQTPRegisterCustomGraphSymbol(const JKQTPCustomGraphSymbolFunctor& f)
 {
-    JKQTPlotterDrawingTools::JKQTPCustomGraphSymbolStore.emplace_back(f);
+    JKQTPlotterDrawingTools::JKQTPCustomGraphSymbolStore.push_back(f);
     return JKQTPFirstCustomSymbol+(JKQTPlotterDrawingTools::JKQTPCustomGraphSymbolStore.size()-1);
 }
diff --git a/lib/jkqtcommon/jkqtpdrawingtools.h b/lib/jkqtcommon/jkqtpdrawingtools.h
index df22661a42..28f27c63d5 100644
--- a/lib/jkqtcommon/jkqtpdrawingtools.h
+++ b/lib/jkqtcommon/jkqtpdrawingtools.h
@@ -250,13 +250,13 @@ JKQTCOMMON_LIB_EXPORT JKQTPGraphSymbols String2JKQTPGraphSymbols(const QString&
 
 
 inline QDataStream& operator<<(QDataStream& str, JKQTPGraphSymbols s) {
-    str<<static_cast<uint64_t>(s);
+    str<<static_cast<quint64>(s);
     return str;
 }
 
 
 inline QDataStream& operator>>(QDataStream& str, JKQTPGraphSymbols& s) {
-    str<<reinterpret_cast<uint64_t&>(s);
+    str<<reinterpret_cast<quint64&>(s);
     return str;
 }