diff --git a/libavcodec/dca.c b/libavcodec/dca.c
index e411c3695d..f1a5ab4344 100644
--- a/libavcodec/dca.c
+++ b/libavcodec/dca.c
@@ -609,7 +609,7 @@ static int dca_subframe_header(DCAContext * s)
                 s->joint_scale_factor[j][k] = scale;    /*joint_scale_table[scale]; */
             }
 
-            if (!s->debug_flag & 0x02) {
+            if (!(s->debug_flag & 0x02)) {
                 av_log(s->avctx, AV_LOG_DEBUG,
                        "Joint stereo coding not supported\n");
                 s->debug_flag |= 0x02;