diff --git a/script/rock.py b/script/rock.py
index a1cab84..59084a2 100644
--- a/script/rock.py
+++ b/script/rock.py
@@ -37,7 +37,7 @@ def rock(axis = th1, tt = 0.2, seti0 = False, dx = None, noref = False):
             time.sleep(3) # wait a bit until mono theta finish moving        
             br = mono_beam.read()
             mono_beam_ref.write(br)
-            print 'rock_success new mono beam at ' + str(br) + ' at' + str(e) + ' keV'
+            print 'rock_success new mono beam at ' + str(br) + ' at ' + str(e) + ' keV'
         return True
     else:        
         max_x= xdata[ydata.index(max(ydata))]