diff --git a/taglib/mpeg/mpegproperties.cpp b/taglib/mpeg/mpegproperties.cpp
index fced161c..fb816f8d 100644
--- a/taglib/mpeg/mpegproperties.cpp
+++ b/taglib/mpeg/mpegproperties.cpp
@@ -213,8 +213,7 @@ void MPEG::Properties::read()
   {
       static const int blockSize[] = { 0, 384, 1152, 1152 };
 
-      double timePerFrame = blockSize[firstHeader.layer()];
-      timePerFrame = firstHeader.sampleRate() > 0 ? timePerFrame / firstHeader.sampleRate() : 0;
+      double timePerFrame = blockSize[firstHeader.layer()] / firstHeader.sampleRate();
       d->length = int(timePerFrame * d->xingHeader->totalFrames());
       d->bitrate = d->length > 0 ? d->xingHeader->totalSize() * 8 / d->length / 1000 : 0;
   }