diff --git a/libavcodec/wmadec.c b/libavcodec/wmadec.c
index 37feca1f7f..a7300594ca 100644
--- a/libavcodec/wmadec.c
+++ b/libavcodec/wmadec.c
@@ -356,7 +356,7 @@ static int decode_exp_vlc(WMACodecContext *s, int ch)
         }
         /* NOTE: this offset is the same as MPEG4 AAC ! */
         last_exp += code - 60;
-        if ((unsigned)last_exp + 60 > FF_ARRAY_ELEMS(pow_tab)) {
+        if ((unsigned)last_exp + 60 >= FF_ARRAY_ELEMS(pow_tab)) {
             av_log(s->avctx, AV_LOG_ERROR, "Exponent out of range: %d\n",
                    last_exp);
             return -1;