diff --git a/app/render/audioplaybackcache.cpp b/app/render/audioplaybackcache.cpp
index a48d3c3eb..6aa389318 100644
--- a/app/render/audioplaybackcache.cpp
+++ b/app/render/audioplaybackcache.cpp
@@ -81,6 +81,8 @@ void AudioPlaybackCache::WritePCM(const TimeRange &range, SampleBufferPtr sample
     }
 
     f.close();
+
+    Validate(range);
   } else {
     qWarning() << "Failed to write PCM data to" << filename_;
   }