diff --git a/libavcodec/aacsbr.c b/libavcodec/aacsbr.c
index 76c1014cce16d..52ebe65b01015 100644
--- a/libavcodec/aacsbr.c
+++ b/libavcodec/aacsbr.c
@@ -321,7 +321,7 @@ static int check_n_master(AVCodecContext *avctx, int n_master, int bs_xover_band
 static int sbr_make_f_master(AACContext *ac, SpectralBandReplication *sbr,
                              SpectrumParameters *spectrum)
 {
-    unsigned int temp, max_qmf_subbands;
+    unsigned int temp, max_qmf_subbands = 0;
     unsigned int start_min, stop_min;
     int k;
     const int8_t *sbr_offset_ptr;