diff --git a/src/sample.c b/src/sample.c
index f48c831..e708101 100644
--- a/src/sample.c
+++ b/src/sample.c
@@ -1936,7 +1936,8 @@
 		}
 		else {
 			len = 1;
-			str = (char *)&c;
+			_str[0] = c;
+			str = _str;
 		}
 
 		/* Check length */