diff --git a/PARAM/SHMS/DC/pdc.pos b/PARAM/SHMS/DC/pdc.pos
index 7e146baf5893b6cac1ab196b7c9d1d2f001a4b91..519b505098e2cc6dbe2c1109751577f564976b14 100644
--- a/PARAM/SHMS/DC/pdc.pos
+++ b/PARAM/SHMS/DC/pdc.pos
@@ -49,7 +49,7 @@ pdc_beta_angle = pdc_1_beta
                  pdc_2_beta
                  pdc_2_beta
                  pdc_2_beta
-                 pdc2_beta
+                 pdc_2_beta
 
 pdc_1_gamma = 0.0  ; TODO: survey
 pdc_2_gamma = 0.0  ; TODO: survey