diff --git a/src/xschem.h b/src/xschem.h
index 4989f3fa..eb62ea35 100644
--- a/src/xschem.h
+++ b/src/xschem.h
@@ -163,8 +163,8 @@ extern char win_temp_dir[PATH_MAX];
 #define CADINITIALY -870
 #define CADZOOMSTEP 1.2
 #define CADMOVESTEP 200
-#define CADMAXZOOM 1000000.0
-#define CADMINZOOM 0.000001
+#define CADMAXZOOM 10000.0
+#define CADMINZOOM 0.005
 #define CADHALFDOTSIZE 3.7
 #define CADNULLNODE -1      /*  no valid node number */
 #define CADWIREMINDIST 8.0