diff --git a/columbus/env.py b/columbus/env.py
index 72271ff..ea4bfc8 100644
--- a/columbus/env.py
+++ b/columbus/env.py
@@ -564,14 +564,16 @@ class ColumbusConfigDefined(ColumbusEnv):
                     else:
                         v = v_raw
                     if k.endswith('_rand'):
+                        print('_rand!')
                         if isinstance(v, int):
+                            print('int!')
                             n = k.replace('_rand', '')
                             cur = getattr(
                                 entity, n)
                             inc = int((v+0.99)*self.random())
                             setattr(entity, n, cur + inc)
                         elif isinstance(v, float):
-                            n = k.replace('_randf', '')
+                            n = k.replace('_rand', '')
                             cur = getattr(
                                 entity, n)
                             inc = v*self.random()
@@ -585,7 +587,7 @@ class ColumbusConfigDefined(ColumbusEnv):
                                     cur[vi] = int((v+0.99)*self.random())
                                     setattr(entity, n, cur)
                                 elif isinstance(v, float):
-                                    n = k.replace('_randf', '')
+                                    n = k.replace('_rand', '')
                                     cur = getattr(
                                         entity, n)
                                     cur[vi] = v*self.random()