diff --git a/ChangeLog b/ChangeLog
index 4878fd1c..305b8d17 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -16042,3 +16042,6 @@
 2017-09-20 Fred Gleason <fredg@paravelsystems.com>
 	* Fixed a bug in rdrender(1) that caused the --channels option
 	to be ignored.
+2017-09-21 Fred Gleason <fredg@paravelsystems.com>
+	* Fixed a bug in 'lib/rdrenderer.cpp' that caused audio corruption
+	when rendering logs longer than 44:30.
diff --git a/lib/rdrenderer.cpp b/lib/rdrenderer.cpp
index f2259230..82f83ff7 100644
--- a/lib/rdrenderer.cpp
+++ b/lib/rdrenderer.cpp
@@ -519,8 +519,8 @@ bool RDRenderer::Render(const QString &outfile,RDLogEvent *log,RDSettings *s,
 					     lls.at(i)->cut()->startPoint());
 	}
 	pcm=new float[frames*s->channels()];
-	memset(pcm,0,frames*s->channels());
-	
+	memset(pcm,0,frames*s->channels()*sizeof(float));
+
 	for(unsigned j=0;j<i;j++) {
 	  Sum(pcm,lls.at(j),frames,s->channels());
 	}