diff --git a/init_data.m b/init_data.m
index c5fe32e..e1c6fa8 100644
--- a/init_data.m
+++ b/init_data.m
@@ -46,7 +46,7 @@ opts_nano_hexapod = struct('actuator', 'lorentz');
 initializeNanoHexapod(opts_nano_hexapod);
 
 %% Initialize the Mirror
-initializeMirror();
+initializeMirror(struct('shape', 'conical'));
 
 %% Initialize Sample
 opts_sample = struct('mass', 20);
diff --git a/initialize/initializeMirror.m b/initialize/initializeMirror.m
index ee075d7..29866df 100644
--- a/initialize/initializeMirror.m
+++ b/initialize/initializeMirror.m
@@ -40,7 +40,7 @@ function [mirror] = initializeMirror(opts_param)
             mirror.shape = [mirror.shape; sqrt(mirror.sphere_radius^2-(z-mirror.jacobian-mirror.h)^2) z];
         end
     elseif strcmp(opts.shape, 'conical')
-        mirror.shape = [mirror.shape; mirror.rad+mirror.h/tand(opts.ang) mirror.h];        
+        mirror.shape = [mirror.shape; mirror.rad+mirror.h/tand(opts.angle) mirror.h];        
     else
         error('Shape should be either conical or spherical');
     end