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diff --git a/src/wav.c b/src/wav.c
index 4b943dc..6020f20 100644
--- a/src/wav.c
+++ b/src/wav.c
@@ -1094,6 +1094,10 @@ wav_write_header (SF_PRIVATE *psf, int calc_length)
psf_binheader_writef (psf, "44", 0, 0) ; /* SMTPE format */
psf_binheader_writef (psf, "44", psf->instrument->loop_count, 0) ;
+ /* Make sure we don't read past the loops array end. */
+ if (psf->instrument->loop_count > ARRAY_LEN (psf->instrument->loops))
+ psf->instrument->loop_count = ARRAY_LEN (psf->instrument->loops) ;
+
for (tmp = 0 ; tmp < psf->instrument->loop_count ; tmp++)
{ int type ;
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