diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp
index 389a08d9e..304177ee1 100644
--- a/src/qt/guiutil.cpp
+++ b/src/qt/guiutil.cpp
@@ -810,7 +810,7 @@ QString formatDurationStr(int secs)
     return strList.join(" ");
 }
 
-QString formatServicesStr(uint64_t mask)
+QString formatServicesStr(quint64 mask)
 {
     QStringList strList;
 
diff --git a/src/qt/guiutil.h b/src/qt/guiutil.h
index 0ae5154d4..67e11e59a 100644
--- a/src/qt/guiutil.h
+++ b/src/qt/guiutil.h
@@ -180,7 +180,7 @@ namespace GUIUtil
     QString formatDurationStr(int secs);
 
     /* Format CNodeStats.nServices bitmask into a user-readable string */
-    QString formatServicesStr(uint64_t mask);
+    QString formatServicesStr(quint64 mask);
 
     /* Format a CNodeCombinedStats.dPingTime into a user-readable string or display N/A, if 0*/
     QString formatPingTime(double dPingTime);