diff --git a/Harmonograph/presets/blackonwhite.json b/Harmonograph/presets/blackonwhite.json
index 6c07396..6133350 100644
--- a/Harmonograph/presets/blackonwhite.json
+++ b/Harmonograph/presets/blackonwhite.json
@@ -15,7 +15,7 @@
             "friction": 0.0005
         },
         {
-            "amplitude": { "x":0 .5, "y": 0.5 },
+            "amplitude": { "x": 0.5, "y": 0.5 },
             "period": 1.001,
             "friction": 0.0005
         },