diff --git a/interp/tools.py b/interp/tools.py
index d167bd5..937f4d0 100644
--- a/interp/tools.py
+++ b/interp/tools.py
@@ -62,14 +62,14 @@ def exact_func_3D(X):
 def improved_answer(answer, exact, verbose=False):
   if not answer['error']:
     return True
-  smblog.debug('error: %s' % answer['error'])
-  smblog.debug('qlin:  %s' % answer['qlin'])
-  smblog.debug('final: %s' % answer['final'])
-  smblog.debug('exact: %s' % exact)
+  log.debug('qlin:  %s' % answer['qlin'])
+  log.debug('error: %s' % answer['error'])
+  log.debug('final: %s' % answer['final'])
+  log.debug('exact: %s' % exact)
 
   if np.abs(answer['final'] - exact) <= np.abs(answer['qlin'] - exact):
-    smblog.debug(":) improved result")
+    log.debug(":) improved result")
     return True
   else:
-    smblog.debug(":( damaged result")
+    log.debug(":( damaged result")
     return False