diff --git a/build.py b/build.py
index 7a9562ab67413d9da8486ae33de63b2d46180bdf..05117709c7cd74fe51c7f19837d68861bcf27a46 100644
--- a/build.py
+++ b/build.py
@@ -18,7 +18,7 @@ if __name__ == '__main__':
     while os.path.exists('src/lab%s.md' % (i, )):
         lab_name = 'lab%s' % (i, )
         i += 1
-        dist_lp, src_md, src_json = 'dist/' + lab_name, 'src/' + lab_name + '.md', 'src/'+lab_name+'.json'
+        dist_lp, src_md, src_json = 'dist/' + lab_name+'/', 'src/' + lab_name + '.md', 'src/'+lab_name+'.json'
 
         os.system('mkdir '+dist_lp)                         # Make directories
         data = readin(src_json, json.loads, [{}])           # Load data
@@ -32,9 +32,9 @@ if __name__ == '__main__':
             for k, v in d.iteritems():
                 plab = plab.replace(u'$%s$' % (k, ), v)
 
-            with open(dist_lp+'/%s.md' % (ex_no, ), 'wb') as labout:
+            with open(dist_lp+'%s.md' % (ex_no, ), 'wb') as labout:
                 labout.write(header_bin)
                 labout.write(plab.encode('utf8'))
                 labout.write(footer_bin)
 
-            os.system(('pandoc %s/%s.md -s -o %s%s.pdf') % (dist_lp, ex_no, dist_lp, ex_no))
+            os.system(('pandoc %s%s.md -s -o %s%s.pdf') % (dist_lp, ex_no, dist_lp, ex_no))