diff --git a/src/Core/Measures.cpp b/src/Core/Measures.cpp
index 655df4705..f5ee22b4d 100644
--- a/src/Core/Measures.cpp
+++ b/src/Core/Measures.cpp
@@ -42,7 +42,7 @@ Measure::getFingerprint() const
     for (int i = 0; i<MAX_MEASURES; i++) x += 1000.0 * values[i];
 
     QByteArray ba = QByteArray::number(x);
-    ba.append(comment);
+    ba.append(comment.toUtf8());
 
     return qChecksum(ba, ba.length());
 }
diff --git a/src/Core/RideItem.cpp b/src/Core/RideItem.cpp
index d53b86599..c295cec37 100644
--- a/src/Core/RideItem.cpp
+++ b/src/Core/RideItem.cpp
@@ -165,8 +165,8 @@ RideItem::metaCRC()
         // with configuration, not user updates
         if (i.key() == "Calendar Text") continue;
 
-        ba.append(i.key());
-        ba.append(i.value());
+        ba.append(i.key().toUtf8());
+        ba.append(i.value().toUtf8());
     }
     return qChecksum(ba, ba.length());
 }
diff --git a/src/FileIO/JsonRideFile.y b/src/FileIO/JsonRideFile.y
index ac63769e1..f08b4638c 100644
--- a/src/FileIO/JsonRideFile.y
+++ b/src/FileIO/JsonRideFile.y
@@ -468,7 +468,7 @@ JsonFileReader::openRideFile(QFile &file, QStringList &errors, QList<RideFile*>*
 QByteArray
 JsonFileReader::toByteArray(Context *, const RideFile *ride, bool withAlt, bool withWatts, bool withHr, bool withCad) const
 {
-    QByteArray out;
+    QString out;
 
     // start of document and ride
     out += "{\n\t\"RIDE\":{\n";
@@ -780,7 +780,7 @@ JsonFileReader::toByteArray(Context *, const RideFile *ride, bool withAlt, bool
     // end of ride and document
     out += "\n\t}\n}\n";
 
-    return out;
+    return out.toUtf8();
 }
 
 // Writes valid .json (validated at www.jsonlint.com)
diff --git a/src/Gui/Colors.cpp b/src/Gui/Colors.cpp
index b2838ff72..e9e763339 100644
--- a/src/Gui/Colors.cpp
+++ b/src/Gui/Colors.cpp
@@ -104,7 +104,7 @@ unsigned long Colors::fingerprint(const Colors *set)
 {
     QByteArray ba;
     while(set->name != "") {
-        ba.append(set->color.name());
+        ba.append(set->color.name().toUtf8());
         set++;
     }
     return qChecksum(ba, ba.length());
diff --git a/src/Metrics/RideMetadata.cpp b/src/Metrics/RideMetadata.cpp
index 342e2ffbb..33a4560db 100644
--- a/src/Metrics/RideMetadata.cpp
+++ b/src/Metrics/RideMetadata.cpp
@@ -1588,11 +1588,11 @@ FieldDefinition::fingerprint(QList<FieldDefinition> list)
 
     foreach(FieldDefinition def, list) {
 
-        ba.append(def.tab);
-        ba.append(def.name);
+        ba.append(def.tab.toUtf8());
+        ba.append(def.name.toUtf8());
         ba.append(def.type);
         ba.append(def.diary);
-        ba.append(def.values.join(""));
+        ba.append(def.values.join("").toUtf8());
     }
 
     return qChecksum(ba, ba.length());
@@ -1651,9 +1651,9 @@ KeywordDefinition::fingerprint(QList<KeywordDefinition> list)
 
     foreach(KeywordDefinition def, list) {
 
-        ba.append(def.name);
-        ba.append(def.color.name());
-        ba.append(def.tokens.join(""));
+        ba.append(def.name.toUtf8());
+        ba.append(def.color.name().toUtf8());
+        ba.append(def.tokens.join("").toUtf8());
     }
 
     return qChecksum(ba, ba.length());