diff --git a/src/lib/src/fwts_tag.c b/src/lib/src/fwts_tag.c
index d8e9dad..daf9b46 100644
--- a/src/lib/src/fwts_tag.c
+++ b/src/lib/src/fwts_tag.c
@@ -164,7 +164,7 @@ char *fwts_tag_list_to_str(fwts_list *taglist)
 		} else {
 			if ((str = malloc(len)) == NULL)
 				return NULL;
-			strcpy(str, tag);
+			strncpy(str, tag, len);
 		}
 	}
 	return str;