diff --git a/exercise1/glsl/shader.vert b/exercise1/glsl/shader.vert
index 4e76036..46f6d96 100644
--- a/exercise1/glsl/shader.vert
+++ b/exercise1/glsl/shader.vert
@@ -22,5 +22,5 @@ void main()
 	
 	fragment_color = in_color;
 
-	julia_position = julia_positions[gl_VertexID];
+	julia_position = julia_positions[gl_VertexID % 3];
 }
\ No newline at end of file