diff --git a/libavcodec/libvorbis.c b/libavcodec/libvorbis.c
index cc9b2f202c2fda1233117aa07f89e8abfd67b926..f9a1b3299546906bfa39571c4e026e9706ca6243 100644
--- a/libavcodec/libvorbis.c
+++ b/libavcodec/libvorbis.c
@@ -68,11 +68,10 @@ static av_cold int oggvorbis_init_encoder(vorbis_info *vi, AVCodecContext *avcco
                 avccontext->sample_rate, minrate, avccontext->bit_rate, maxrate))
             return -1;
 
-#ifdef OGGVORBIS_VBR_BY_ESTIMATE
-        /* variable bitrate by estimate */
-        if(vorbis_encode_ctl(vi, OV_ECTL_RATEMANAGE2_SET, NULL))
-            return -1;
-#endif
+        /* variable bitrate by estimate, disable slow rate management */
+        if(minrate == -1 && maxrate == -1)
+            if(vorbis_encode_ctl(vi, OV_ECTL_RATEMANAGE2_SET, NULL))
+                return -1;
     }
 
     /* cutoff frequency */