diff --git a/libavutil/audioconvert.c b/libavutil/audioconvert.c
index 60743de22a..6e8649d56c 100644
--- a/libavutil/audioconvert.c
+++ b/libavutil/audioconvert.c
@@ -52,9 +52,9 @@ static const struct {
     { "4.0",         4,  AV_CH_LAYOUT_4POINT0 },
     { "quad",        4,  AV_CH_LAYOUT_QUAD },
     { "5.0",         5,  AV_CH_LAYOUT_5POINT0 },
-    { "5.0",         5,  AV_CH_LAYOUT_5POINT0_BACK },
+    { "5.0(back)",   5,  AV_CH_LAYOUT_5POINT0_BACK },
     { "5.1",         6,  AV_CH_LAYOUT_5POINT1 },
-    { "5.1",         6,  AV_CH_LAYOUT_5POINT1_BACK },
+    { "5.1(back)",   6,  AV_CH_LAYOUT_5POINT1_BACK },
     { "5.1+downmix", 8,  AV_CH_LAYOUT_5POINT1|AV_CH_LAYOUT_STEREO_DOWNMIX, },
     { "7.1",         8,  AV_CH_LAYOUT_7POINT1 },
     { "7.1(wide)",   8,  AV_CH_LAYOUT_7POINT1_WIDE },
diff --git a/libavutil/avutil.h b/libavutil/avutil.h
index 568f66b989..ffcac1c152 100644
--- a/libavutil/avutil.h
+++ b/libavutil/avutil.h
@@ -41,7 +41,7 @@
 
 #define LIBAVUTIL_VERSION_MAJOR 51
 #define LIBAVUTIL_VERSION_MINOR 11
-#define LIBAVUTIL_VERSION_MICRO  0
+#define LIBAVUTIL_VERSION_MICRO  1
 
 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
                                                LIBAVUTIL_VERSION_MINOR, \