diff --git a/exec.c b/exec.c
index 1aa64327af4e01440a7c5a4a42e7a3443b898cc7..f55c198cfba7e9c0a93a7f81d7a42ae8b172e6f0 100644
--- a/exec.c
+++ b/exec.c
@@ -437,7 +437,7 @@ static void code_gen_alloc(unsigned long tb_size)
         if (code_gen_buffer_size > (512 * 1024 * 1024))
             code_gen_buffer_size = (512 * 1024 * 1024);
 #elif defined(__arm__)
-        /* Map the buffer below 64M, so we can use direct calls and branches */
+        /* Map the buffer below 32M, so we can use direct calls and branches */
         flags |= MAP_FIXED;
         start = (void *) 0x01000000UL;
         if (code_gen_buffer_size > 16 * 1024 * 1024)