diff --git a/src/TrackArtist.cpp b/src/TrackArtist.cpp
index 4a89735de..39512ee31 100644
--- a/src/TrackArtist.cpp
+++ b/src/TrackArtist.cpp
@@ -2029,6 +2029,8 @@ void TrackArtist::DrawClipSpectrum(WaveTrackCache &cache,
    if (!updated && clip->mSpecPxCache->valid && (clip->mSpecPxCache->len == mid.height * mid.width)
       && gain == clip->mSpecPxCache->gain
       && range == clip->mSpecPxCache->range
+      && minFreq == clip->mSpecPxCache->minFreq
+      && maxFreq == clip->mSpecPxCache->maxFreq
 #ifdef EXPERIMENTAL_FFT_Y_GRID
    && fftYGrid==fftYGridOld
 #endif //EXPERIMENTAL_FFT_Y_GRID
@@ -2047,6 +2049,8 @@ void TrackArtist::DrawClipSpectrum(WaveTrackCache &cache,
       clip->mSpecPxCache->valid = true;
       clip->mSpecPxCache->gain = gain;
       clip->mSpecPxCache->range = range;
+      clip->mSpecPxCache->minFreq = minFreq;
+      clip->mSpecPxCache->maxFreq = maxFreq;
 #ifdef EXPERIMENTAL_FIND_NOTES
       fftFindNotesOld = fftFindNotes;
       findNotesMinAOld = findNotesMinA;
diff --git a/src/WaveClip.h b/src/WaveClip.h
index cb48cdc7b..42e435e30 100644
--- a/src/WaveClip.h
+++ b/src/WaveClip.h
@@ -44,6 +44,7 @@ public:
       values = new float[len];
       valid = false;
       range = gain = -1;
+      minFreq = maxFreq = -1;
    }
 
    ~SpecPxCache()
@@ -57,6 +58,8 @@ public:
 
    int range;
    int gain;
+   int minFreq;
+   int maxFreq;
 };
 
 class WaveClip;