1 files changed, 1 insertions, 0 deletions
diff --git a/src/util.c b/src/util.c
index d3ed5fa..2d8fb96 100644
--- a/src/util.c
+++ b/src/util.c
@@ -365,6 +365,7 @@ void slirp_pstrcpy(char *buf, int buf_size, const char *str)
     *q = '\0';
 }
 
+G_GNUC_PRINTF(3, 0)
 static int slirp_vsnprintf(char *str, size_t size,
                            const char *format, va_list args)
 {