diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index c2d5d990ca..60653d55bd 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -3820,13 +3820,13 @@ static int decode_slice_header(H264Context *h, H264Context *h0){
                Dont bother to deblock across slices */
             h->deblocking_filter = 2;
         } else {
-        h0->max_contexts = 1;
-        if(!h0->single_decode_warning) {
-            av_log(s->avctx, AV_LOG_INFO, "Cannot parallelize deblocking type 1, decoding such frames in sequential order\n");
-            h0->single_decode_warning = 1;
-        }
-        if(h != h0)
-            return 1; // deblocking switched inside frame
+            h0->max_contexts = 1;
+            if(!h0->single_decode_warning) {
+                av_log(s->avctx, AV_LOG_INFO, "Cannot parallelize deblocking type 1, decoding such frames in sequential order\n");
+                h0->single_decode_warning = 1;
+            }
+            if(h != h0)
+                return 1; // deblocking switched inside frame
         }
     }