diff --git a/framesvg.cpp b/framesvg.cpp
index 0685d472e..f7b488061 100644
--- a/framesvg.cpp
+++ b/framesvg.cpp
@@ -621,13 +621,13 @@ void FrameSvgPrivate::cacheFrame(const QString &prefixToSave)
 
     //kDebug()<<"Saving to cache frame"<<id;
 
-    Theme::defaultTheme()->insertIntoCache(id, frame->cachedBackground, QString::number((qint64)q)+prefixToSave);
+    Theme::defaultTheme()->insertIntoCache(id, frame->cachedBackground, QString::number((qint64)q, 16)+prefixToSave);
 
     //insert overlay
     id = QString::fromLatin1("overlay_%7_%6_%5_%4_%3_%2_%1_").
         arg(overlayPos.y()).arg(overlayPos.x()).arg(frame->enabledBorders).arg(size.width()).arg(size.height()).arg(prefixToSave).arg(q->imagePath());
 
-    Theme::defaultTheme()->insertIntoCache(id, frame->cachedBackground, QString::number((qint64)q)+prefixToSave+"overlay");
+    Theme::defaultTheme()->insertIntoCache(id, frame->cachedBackground, QString::number((qint64)q, 16)+prefixToSave+"overlay");
 }
 
 void FrameSvgPrivate::updateSizes()
diff --git a/svg.cpp b/svg.cpp
index f8e367da4..a7749f8cf 100644
--- a/svg.cpp
+++ b/svg.cpp
@@ -238,7 +238,7 @@ class SvgPrivate
             }
 
             if (cacheRendering) {
-                actualTheme()->insertIntoCache(id, p, QString::number((qint64)q)+elementId);
+                actualTheme()->insertIntoCache(id, p, QString::number((qint64)q, 16)+elementId);
             }
 
             return p;