diff --git a/libavutil/samplefmt.c b/libavutil/samplefmt.c
index 6f7070e43c..bdbbf0a37d 100644
--- a/libavutil/samplefmt.c
+++ b/libavutil/samplefmt.c
@@ -23,7 +23,7 @@
 #include <string.h>
 
 typedef struct SampleFmtInfo {
-    const char *name;
+    char name[4];
     int bits;
 } SampleFmtInfo;