diff --git a/src/plasma/framesvg.cpp b/src/plasma/framesvg.cpp
--- a/src/plasma/framesvg.cpp
+++ b/src/plasma/framesvg.cpp
@@ -452,7 +452,7 @@
 
 void FrameSvgPrivate::generateBackground(const QSharedPointer<FrameData> &frame)
 {
-    if (!frame->cachedBackground.isNull() || !q->hasElementPrefix(frame->requestedPrefix)) {
+    if (!frame->cachedBackground.isNull() || !q->hasElementPrefix(frame->prefix)) {
         return;
     }