diff --git a/cubesatsim/cubesatsim.ino b/cubesatsim/cubesatsim.ino
index aa02511f..bab8e476 100644
--- a/cubesatsim/cubesatsim.ino
+++ b/cubesatsim/cubesatsim.ino
@@ -81,7 +81,8 @@ extern bool get_camera_image(bool debug);
 extern bool start_camera();
 
 float rand_float(float lower, float upper) {
-  return (float)(random(upper*100, lower*100)/100.0);	
+
+  return (float)(random(lower*100, upperf*100)/100.0);	
 }
 
 void setup() {