diff --git a/regress.c b/regress.c
index 35ca89f..68ef4fa 100644
--- a/regress.c
+++ b/regress.c
@@ -34,7 +34,7 @@
 #include "logging.h"
 #include "util.h"
 
-#define MAX_POINTS 128
+#define MAX_POINTS 64
 
 void
 RGR_WeightedRegression