diff --git a/observation_sim/mock_objects/FlatLED.py b/observation_sim/mock_objects/FlatLED.py
index f47967b0a77471ed731d7231626e6215c99771d6..9560ab9d673d99185fd1a0839fd503628fc60fdf 100755
--- a/observation_sim/mock_objects/FlatLED.py
+++ b/observation_sim/mock_objects/FlatLED.py
@@ -123,7 +123,7 @@ class FlatLED(MockObject):
     # return LED flat, e/s
     ###
 
-    def getLEDImage1(self, led_type='LED1', LED_Img_flag =True):
+    def getLEDImage1(self, led_type='LED1', LED_Img_flag=True):
         # cwave = cwaves[led_type]
         flat = fits.open(os.path.join(self.flatDir, 'model_' +
                          cwaves_name[led_type] + 'nm.fits'))