diff --git a/taglib/riff/aiff/aiffproperties.cpp b/taglib/riff/aiff/aiffproperties.cpp
index f074fae3..e345fb0c 100644
--- a/taglib/riff/aiff/aiffproperties.cpp
+++ b/taglib/riff/aiff/aiffproperties.cpp
@@ -179,7 +179,7 @@ void RIFF::AIFF::Properties::read(File *file)
     d->sampleRate = static_cast<int>(sampleRate + 0.5);
 
   if(d->sampleFrames > 0 && d->sampleRate > 0) {
-    const double length = d->sampleFrames * 1000.0 / sampleRate;
+    const double length = d->sampleFrames * 1000.0 / d->sampleRate;
     d->length  = static_cast<int>(length + 0.5);
     d->bitrate = static_cast<int>(streamLength * 8.0 / length + 0.5);
   }