diff --git a/libavcodec/dcadec.c b/libavcodec/dcadec.c
index 076a225..72b1ee0 100644
--- a/libavcodec/dcadec.c
+++ b/libavcodec/dcadec.c
@@ -1215,17 +1217,17 @@ static int dca_subsubframe(DCAContext *s, int base_channel, int block_index)
         /*
          * Decode VQ encoded high frequencies
          */
+        if ((!s->debug_flag & 0x01) &&
+            s->subband_activity[k]-s->vq_start_subband[k] > 0) {
+            av_log(s->avctx, AV_LOG_DEBUG,
+                   "Stream with high frequencies VQ coding\n");
+            s->debug_flag |= 0x01;
+        }
         for (l = s->vq_start_subband[k]; l < s->subband_activity[k]; l++) {
             /* 1 vector -> 32 samples but we only need the 8 samples
              * for this subsubframe. */
             int hfvq = s->high_freq_vq[k][l];

-            if (!s->debug_flag & 0x01) {
-                av_log(s->avctx, AV_LOG_DEBUG,
-                       "Stream with high frequencies VQ coding\n");
-                s->debug_flag |= 0x01;
-            }
-
             int8x8_fmul_int32(&s->dcadsp, subband_samples[k][l],
                               &high_freq_vq[hfvq][subsubframe * 8],
                               s->scale_factor[k][l][0]);