diff --git a/app/src/processing/app/SketchCode.java b/app/src/processing/app/SketchCode.java
index 807d479ea..55b6addca 100644
--- a/app/src/processing/app/SketchCode.java
+++ b/app/src/processing/app/SketchCode.java
@@ -87,7 +87,7 @@ public class SketchCode {
 
   protected void makePrettyName() {
     prettyName = file.getName();
-    int dot = prettyName.indexOf('.');
+    int dot = prettyName.lastIndexOf('.');
     prettyName = prettyName.substring(0, dot);
   }