diff --git a/libavformat/tedcaptionsdec.c b/libavformat/tedcaptionsdec.c
index b468969590..68063fafbe 100644
--- a/libavformat/tedcaptionsdec.c
+++ b/libavformat/tedcaptionsdec.c
@@ -153,7 +153,8 @@ static int parse_label(AVIOContext *pb, int *cur_byte, AVBPrint *bp)
 
 static int parse_boolean(AVIOContext *pb, int *cur_byte, int *result)
 {
-    const char *text[] = { "false", "true" }, *p;
+    static const char * const text[] = { "false", "true" };
+    const char *p;
     int i;
 
     skip_spaces(pb, cur_byte);