diff --git a/libavutil/avstring.c b/libavutil/avstring.c
index 02af970812..6d45a9581a 100644
--- a/libavutil/avstring.c
+++ b/libavutil/avstring.c
@@ -78,7 +78,8 @@ size_t av_strlcatf(char *dst, size_t size, const char *fmt, ...)
     return len;
 }
 
-char *av_d2str(double d){
+char *av_d2str(double d)
+{
     char *str= av_malloc(16);
     if(str) snprintf(str, 16, "%f", d);
     return str;