diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 21f52ccab2..fda77b0b89 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -2171,8 +2171,8 @@ static int mkv_stereo3d_conv(AVStream *st, MatroskaVideoStereoModeType stereo_mo
     } stereo_mode_conv [] = {
 #define STEREO_MODE_CONV(STEREOMODETYPE, STEREO3DTYPE, FLAGS, WDIV, HDIV, WEBM) \
     [(STEREOMODETYPE)] = { .type = (STEREO3DTYPE), .flags = (FLAGS) },
-#define IGNORE(STEREOMODETYPE, WDIV, HDIV, WEBM)
-        STEREOMODE_STEREO3D_MAPPING(STEREO_MODE_CONV, IGNORE)
+#define NOTHING(STEREOMODETYPE, WDIV, HDIV, WEBM)
+        STEREOMODE_STEREO3D_MAPPING(STEREO_MODE_CONV, NOTHING)
     };
     AVStereo3D *stereo;
     int ret;
diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index d26c0fa059..bf2ca7106b 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -1633,9 +1633,9 @@ static int mkv_write_stereo_mode(AVFormatContext *s, EbmlWriter *writer,
          * values to be in the range 0..254. */
 #define STEREOMODE(STEREOMODETYPE, STEREO3DTYPE, FLAGS, WDIV, HDIV, WEBM) \
     [(STEREO3DTYPE)][!!((FLAGS) & AV_STEREO3D_FLAG_INVERT)] = (STEREOMODETYPE) + 1,
-#define IGNORE(STEREOMODETYPE, WDIV, HDIV, WEBM)
+#define NOTHING(STEREOMODETYPE, WDIV, HDIV, WEBM)
         static const unsigned char conversion_table[][2] = {
-            STEREOMODE_STEREO3D_MAPPING(STEREOMODE, IGNORE)
+            STEREOMODE_STEREO3D_MAPPING(STEREOMODE, NOTHING)
         };
         int fmt;