diff --git a/test/input.c b/test/input.c
index ac37d67a1..837ce49dc 100644
--- a/test/input.c
+++ b/test/input.c
@@ -1223,8 +1223,11 @@ static void dix_valuator_alloc(void)
 
         assert(v);
         assert(v->numAxes == num_axes);
+#ifndef __i386__
+        /* must be double-aligned on 64 bit */
         assert(((void*)v->axisVal - (void*)v) % sizeof(double) == 0);
         assert(((void*)v->axes - (void*)v) % sizeof(double) == 0);
+#endif
         num_axes ++;
     }