diff --git a/tests/charcount.c b/tests/charcount.c
index f8b3641b27..6a3d2744d2 100644
--- a/tests/charcount.c
+++ b/tests/charcount.c
@@ -1,6 +1,6 @@
 #include "rocc.h"
 
-char string[64] = "The quick brown fox jumped over the lazy dog";
+char string[64] __attribute__ ((aligned (64))) = "The quick brown fox jumped over the lazy dog";
 
 static inline unsigned long count_chars(char *start, char needle)
 {